Answer: NCOV was first identified in Wuhan city , China. it is probably emerged from an animal source.
Explanation:
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.
The answer is b . It can help improve the poor posture responsible for back pain
