Which sentence follows all punctuation and capitalization rules?

Question

Responses

On Friday the staff is having a meeting at 4:00.
On Friday the staff is having a meeting at 4:00.

on friday the staff is having a meeting at 400?
on friday the staff is having a meeting at 400?

On Friday, the staff is having a meeting at 4:00?
On Friday, the staff is having a meeting at 4:00?

On Friday, the staff is having a meeting at 4:00.

Answer 1

The sentence that follows all punctuation and capitalization rules is:

On Friday, the staff is having a meeting at 4:00.