Which of the following statements is true regarding adolescent changes?

A) Boys start to spurt in height sooner than girls.
B) Most adolescents acquire a plump and rounded body structure during adolescence.
C) Boys gain twice as much fatty tissue as girls.
D) Many adolescents are relatively slender compared with their preadolescent stature.

During adolescence, many individuals tend to become relatively slender compared to their preadolescent stature. This is due to the rapid growth in height that often outpaces increases in weight, leading to a leaner appearance. Boys typically start their growth spurt later than girls but eventually surpass them in height and muscle development, contrary to gaining more fatty tissue. Adolescents generally do not acquire a plump and rounded body structure; instead, they undergo significant changes that include increases in muscle mass and redistribution of body fat.