After several weeks of feeling gloomy and being socially withdrawn, marco has suddenly become extremely sociable and talkative. he doesn't seem to need any sleep, and he becomes irritated when his friends tell him to slow down. marco's behavior is consistent with:

a) histrionic personality disorder.
b) bipolar disorder.
c) obsessive-compulsive disorder.
d) schizophrenia.

A72-year-old woman fell in her bathtub and fractured her hip. in viewing the fracture, x-ray revealed osteoporotic changes in her bone as well. after reduction of the fracture, and immobilizing the bones with internal pins, what type of exercise would the doctor have advised her to do as soon as she was able in addition to prescribing calcium supplements to improve her bone mass?