Which Statement About Anorexia Nervosa Is True

Which statement about anorexia nervosa is true?

A) About 7 percent of North American and Western European teenage girls are affected by anorexia.
B) During the past half-century, cases of anorexia have increased sharply, fueled by cultural admiration of female thinness.
C) In the United States, African-American girls are at greater risk than European-American and Hispanic girls.
D) Boys account for 1 to 5 percent of anorexia cases, and up to half of these are gay or bisexual young people.