In some cases the epiphyseal plate of the long bones of children closes too early. What might be the cause?

In some cases the epiphyseal plate of the long bones of children closes too early. What might be the cause? 










A) overproduction of thyroid hormone
B) elevated levels of sex hormones
C) too much vitamin D in the diet
D) osteoblast activity exceeds osteoclast activity














Answer: B