Thirteen-Year-Old Grace's Blood Tests Indicate That Her Levels of Testosterone

Multiple Choice

Thirteen-year-old Grace's blood tests indicate that her levels of testosterone are about twice as high as they were a few years ago,and that her estradiol levels are about eight times higher than earlier.Grace is most likely experiencing:

A) normal changes during puberty.
B) difficulties due to significant imbalances in hormonal levels.
C) abnormal development of male physical characteristics.
D) abnormal development of female physical characteristics.