Question

select the correct answer. which of the following changes during male adolescence is a sign that a boy has become fertile? a. onset of nocturnal emissions b. growth of the testicles and penis c. deepening of the voice d. development of body hair

Explanation:

Fertility in males is associated with the ability to produce viable sperm. Nocturnal emissions, also known as wet - dreams, indicate that sperm production has started and the male has become fertile. Growth of testicles and penis, deepening of the voice, and development of body hair are other secondary sexual characteristics but do not directly signify fertility like nocturnal emissions.

Answer:

A. Onset of nocturnal emissions