During puberty, __________ stokes the growth of muscle and bone and the development of primary and secondary sex characteristics in a male body.

A) testosterone
B) vasopressin
C) estrogen
D) norepinephrine

Testosterone

A primary male sex hormone that plays key roles in health and well-being, including regulating libido, muscle mass, and strength.

Puberty

The developmental stage during which a child's body matures into an adult body capable of sexual reproduction.

Muscle Growth

The increase in size of muscle fibers, often occurring as a result of physical training through processes such as hypertrophy.