Answer:
how can i help whats going on?
B. Kefauver-Harris Amendment
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.
C) 1967 i think im not sure need to check on that