Reaction to the outside environment and or reaction to stimuli.
I believe it is C. Swimming
I hope it helped :)
A. a hospital sign because its blue
Arrector pili muscle is the one with hair follicles that has a smooth muscle which is in an unconscious control rather than conscious control. This pull up the follicle causing the goose bumps then. Hope this is the right answer and will be of big help then.
A is the answer to the question
