which of the following describes a custom

A. doing your homework

C. not littering

B. shaking hands when you greet someone

D. studying geography ​

Answer :

kams2232006

Answer: Shaking hands when you greet someone

Explanation: When someone offers their hand, you will most likely shake it back. If told to do homework or study, you don't necessarily need t do it, same with littering.

Amdr16

Answer:B- shaking hands when you greet someone.

Explanation: A customs is a traditional and widely accepted way of behaving. It is customary to shake someone’s hands when meeting them.