The ____ of the study is the way the study is conducted and the data are collected

Muscle dysmorphia is ________

a. characterized by excessive cramping of the muscles when exercising b. an obsessive concern with one's muscle size c. characterized by excessively large but weak striated muscles d. a steady and uncontrollable deterioration of muscle mass in young adulthood

What is the approximate percentage of children in the U.S. who spend their entire childhood living in the same household with both parents?

a) 33% b) 50% c) 40% d) 25%