Which saying describes the best reason for using effective communication skills when meeting someone new?
a. necessity is the mother of invention.
b. you can't make a second good first impression.
c. people who live in glass houses shouldn't throw stones.
d. people who think before they speak will often never say a word.

B. You can't make a second good first impression.

Explanation:

You can only make one first impression with someone - if you fail to do so, you will never get another opportunity to do that. You can make a good second impression after that, but their initial impression of you will not change unless you use effective communication skills to impress them immediately.

A means that you will try to do anything possible when you have to find ways as to how to make something work.

C means that you shouldn't do the things you wouldn't like other people to do to you.

I don't think D even exists as an expression in English.

have you tried searching something on google