Astudent wants to become more active but is feeling overwhelmed and does not know where to begin. what is the most effective first step she can take to develop a daily activity routine?

a. find a moderate activity that she enjoys
b .watch her friends participate in team sports
c. run for an hour every day to build stamina
d. buy exercise equipment to use at home

i know its not b but the other ones or possibilities so i don't know. !

Astructural difference between the trachea and esophagus that prevents the trachea from collapsing is the presence of: a) smooth muscle b) skeletal muscle c) respiratory cilia d) rings of cartilage

In a study of a weight loss program, 40 subjects lost a mean of 3.0 lb after 12 months. does the weight loss program have practical significance? a. yes, because the weight loss program worked and the subjects lost a mean of 3.0 lb. b. no, because the mean weight loss of 3.0 lb after one year does not seem to justify the program. c. no, because the sample of 40 subjects was too small to determine if the program was useful. d. yes, because the mean weight loss of 3.0 lb after one year does seems to justify the program.

Ireally need to know this answer asap