Answer:
d
Explanation:
most respectful, a implies you didnt please them that time they visited, b insists they bring their family next time, and they might not want to do that, and c implies that this was your first time having good service
B. It has nothing to do with art.
A microphone is used to transmit any audio.
For example, if you were to be calling your friends using your phone, you are using a microphone to talk to them so they can hear you.
The answer is acochol obviously
