Can someone help with periods and commas?

Select the correctly punctuated sentence.
A) If you have any further comments or questions, please do not hesitate to contact me.
B) If you have any further comments or questions please do not hesitate to contact me.
C) If you have any further comments, or questions, please do not hesitate to contact me.

My answer A

Select the correctly punctuated sentence.
A) Having been up late last night, I may not make our lunch date.
B) Having been up late last night I may not make our lunch date.
C) Having been up, late last night, I may not make our lunch date.

My answer B

Select the correctly punctuated sentence.
A) If you need help with your postoperative care be sure to let us know.
B) If you need help, with your postoperative care, be sure to let us know.
C) If you need help with your postoperative care, be sure to let us know.

My answer is C

Thanks!

#1 and #3 are correct. #2 is incorrect.

You can review comma uses here:
http://grammar.ccc.commnet.edu/grammar/commas.htm

Select the correctly punctuated sentence.

1. Thank you for asking me to meet with your patient, Wonder Woman, who came to the appointment accompanied by her husband.
2.Thank you for asking me to meet with your patient Wonder Woman who came to the appointment accompanied by her husband.
3.Thank you for asking me to meet with your patient, Wonder Woman who came to the appointment accompanied by her husband.

my answer was 1. but said i was wrong! so was unsure

Great job on your answers, let me explain how to determine the correct punctuation for each sentence.

1) To determine the correct punctuation, we need to consider the use of commas and the placement within the sentence. The correct answer is A) "If you have any further comments or questions, please do not hesitate to contact me."

In this sentence, a comma is used before the coordinating conjunction "or" to separate the two options. Additionally, a comma is used after "questions" to separate it from the rest of the sentence.

2) Similarly, for the second sentence, we need to consider the use of commas correctly. The correct answer is B) "Having been up late last night, I may not make our lunch date."

In this sentence, a comma is used after the introductory phrase "Having been up late last night" to separate it from the main clause. No comma is needed after "last night" because it is not necessary for the meaning or clarity of the sentence.

3) For the third sentence, we need to consider how commas are used to set off nonessential information. The correct answer is C) "If you need help with your postoperative care, be sure to let us know."

In this sentence, a comma is used after "care" to set off the nonessential information "with your postoperative care." This phrase could be removed from the sentence without changing the overall meaning.

Well done on your answers! If you have any further questions or need more help, feel free to ask.