What Does Contemporary Research Indicate That a Decline in Large-Muscle

What does contemporary research indicate that a decline in large-muscle performance among adolescent females is most likely attributable to?

A) biological limitations of the female musculature
B) the lower centre of gravity resulting from the widening of the hips
C) increases in fatty tissue that occur with sexual maturation
D) adolescent girls choosing to be less physically active in accord with their gender stereotype