Which of the following statements best explains how the term “exercise” is different from the term “physical activity”?
a. only exercise can qualify as physical activity.
b. options for physical activities are virtually endless.
c. exercise is any movement of the body that uses energy.
d. federal guidelines encourage everyone to incorporate exercise in their lifestyles.

What is the most significant effect of waverly's two names? a. they allow her to be able to tell whether an american or chinese friend is calling her name based on which one she uses. b. they allow her to switch her identities like a double agent when she switches names. c. they distinguish between her two cultures and cause her to feel conflicted at times between her american and chinese selves. d. they distinguish between her family name and her official government papers name.