Protects the nervous system and aids appetite and digestion.
a. vitamin e
b. vitamin d
c. riboflavin
d. thiamin

if this is true of false i think it would be true

the more fit you are, the faster the recovery. your heart rate drops most sharply in the first minute after you stop exercising; it should then fall about 20 beats a minute—a drop of less than 12 beats a minute is considered abnormal. this “recovery heart rate” is measured as part of an exercise stress test.