B, because it doesn't exactly quicken as in a, no odd characters are introduced, and these not really any details we need to know that are left out. I picked B because there are intentionally larger words.
Answer: you would just calmly reply yes that may be true but if it is something rude or not polite to say then kindly ask them to please keep that comment to themselves
Explanation:
First one is false. this means that it is not appropriate.
second one is true. this means that the message is appropriate, so you would agree to any thing that has been set that is not inappropriate.
Answer:
A. Before the salutation.
While the answer says <em>before</em> the salutation, I would say include it in the salutations.