Which sentence is punctuated correctly?

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There's only one way to find out the truth: we must confront him
There is only one way, to find out the truth; we must confront him.
There is only one way, to find out the truth, we must confront him
There is only one way to find out the truth—we must confront him.

There is only one way to find out the truth—we must confront him.

Aunt Martha was upset with Nathan, for he had done poorly on his examinations. Looking at his grades, she spoke in an angry tone, “You have really disappointed me! You are " Tring-tring rang the telephone. ”

How should Aunt Martha’s response be punctuated to show that she was interrupted by the sound of the telephone?
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Looking at his grades, she spoke in an angry tone, “You have really disappointed me! You are “[ ]”
Looking at his grades, she spoke in an angry tone, “You have really disappointed me! You are ___.”
Looking at his grades, she spoke in an angry tone, “You have really disappointed me! You are . . . ”
Looking at his grades, she spoke in an angry tone, “You have really disappointed me! You are, etc.”

Looking at his grades, she spoke in an angry tone, “You have really disappointed me! You are ___________.”

Debby was determined despite her parents’ reluctance to participate in the talent hunt.

What punctuation should be used to emphasize the part of the sentence in bold?
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dashes
periods
semicolons
ellipses

dashes

Which sentence is punctuated correctly?

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Although, Davis had to work on his geography assignment; he offered to help Dana with her household chores.
Although Davis had to work on his geography assignment, he offered to help Dana with her household chores.
Although, Davis had to attend work on his geography assignment, he offered to help Dana, with her household chores.
Although Davis had to work on his geography assignment; he offered to help Dana with her household chores.

Although Davis had to work on his geography assignment, he offered to help Dana with her household chores.

Which sentence is punctuated correctly?

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Deandre's science teacher did a lot of challenging experiments in class; for example, he made his students build contraptions for an egg drop from two stories high.
Deandre's science teacher did a lot of challenging experiments in class for example; he made his students build contraptions for an egg drop, from two stories high.
Deandre's science teacher did a lot of challenging experiments in class, for example, he made his students build contraptions for an egg drop, from two stories high.
Deandre's science teacher did a lot of challenging experiments; in class for example, he made his students build contraptions, for an egg drop, from two stories high.

Deandre's science teacher did a lot of challenging experiments in class; for example, he made his students build contraptions for an egg drop from two stories high.

Select the quotation with the correct punctuation marks.

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Sandra exclaimed "What a wonderful day it is"!
Sandra exclaimed, "What a wonderful day it is"
Sandra, exclaimed "What a wonderful day it is."
Sandra exclaimed, "What a wonderful day it is!"