What is the typical difference in the age of onset for the adolescent growth spurt between males and females

A)  two years earlier in females
B)  one year earlier in females 
C)  one year later in females
D)  two years later in females

Adolescent Growth Spurt

A rapid period of growth in height and weight that occurs during puberty.

Onset

The beginning or start of something, often used in a medical context to describe the initiation of symptoms or a disease process.

Males

Individuals of the sex that produces small, mobile gametes (sperm) for reproduction and is typically characterized by certain physical features distinct from females.