Question

This article is mainly about _________.

A. studies of animal sounds that humans are not able to hear.
B. the question of why some animals laugh when they are tickled. C. the part of the brain that controls the body's defense system
D. similarities and differences between rats and other animals

Article: Are Rats Ticklish, Too?

Answer 1

i dont know but

Step-by-step explanation:

is it b? i have never heard of that article