Which of the following is a major form of animal communication?

Body Language is a major form of animal communication.

auditory communication

(could be possibly visual communication )

Explanation:

animals communicate with sounds and gestures

there was no selection but based of my knowledge the biggest form of animal communication was either  Visual Communication. and auditory communication, based on how animals usually are communicating within their  own species id have to say that auditory communication is more common.

1) Visual communication for animals comes in two forms: badges and displays.

2)  Barking, growling, hissing and purring all are considered animal auditory communication.

this is really easy just look up what these words mean