Final answer:
The likely answer is that Gary is an early-maturing boy and Olivia is a late-maturing girl.
Step-by-step explanation:
The likely answer to the question is option 3) Gary is an early-maturing boy, and Olivia is a late-maturing girl.
The passage mentions that early maturing boys are viewed as relaxed, independent, and physically attractive, which aligns with how Gary is viewed. On the other hand, early maturing girls may be teased or admired, and they are at a higher risk for depression, substance abuse, and eating disorders, which aligns with Olivia being viewed as lively, sociable, and physically attractive. Therefore, it can be inferred that Gary is an early-maturing boy and Olivia is a late-maturing girl.