Vasectomies are never reversible

Very low-birthweight babies smile, walk, and talk earlier

: Indicate whether this statement is true or false.

Binge drinking __________________________

a. peaks in emerging adulthood in the United States, but not in Europe where adolescents are often allowed to drink alcohol with their meals b. has not been studied longitudinally because of the difficulty getting IRB approval to ask about alcohol use among high school students c. is highest among single mothers in their early twenties who do not go to college d. is more likely among emerging adults than those in other age groups because they spend more time in unstructured socializing