The correct option is
A The time for growth spurts and puberty changes.
Adolescence is the period of life when the body undergoes changes, leading to reproductive maturity. The period following the onset of puberty during which a young person develops from a child into an adult is called as adolescence. It is marked by accelerated physical growth, development of reproductive organs and changes in the functioning of the neuroendocrine system.Thus, the correct answer is option A.