Which of the following sentences is punctuated correctly?

A. After you sign the agreement it is too late of course, to change your mind.
B. After you sign the agreement, it is too late of course to change your mind.
C. After you sign the agreement, it is too late, of course, to change your mind.
D. After you sign the agreement, it is too late, of course to change your mind

When you have posted what YOU THINK about all these, someone may be able to help.

.Which of the following options best demonstrates sentence fluency?

A. The two boys went to the store to buy some milk with their mother and her boyfriend, who had a broken foot after supper.
B. The two boys went to the store to buy some milk after supper with their mother’s boyfriend and her, even though he had a broken foot
C. Their mother went with the two boys to the store to buy some milk, and they took along her boyfriend, who had a broken foot, after supper.
D. After supper, the two boys took their mother and her boyfriend, who had a broken foot, to the store to buy some milk.

To determine which of the sentences is punctuated correctly, let's analyze them one by one:

A. After you sign the agreement it is too late of course, to change your mind.
In this sentence, there is a missing comma after "agreement."

B. After you sign the agreement, it is too late of course to change your mind.
This sentence has a missing comma before "of course."

C. After you sign the agreement, it is too late, of course, to change your mind.
This sentence is correctly punctuated. There are commas placed correctly before and after "of course."

D. After you sign the agreement, it is too late, of course to change your mind.
Similar to option B, this sentence is missing a comma before "of course."

Therefore, the answer is option C. After you sign the agreement, it is too late, of course, to change your mind.