Twenty-Year-Old Jack Is Extremely Tall and Has Very Thick Facial

Multiple Choice

Twenty-year-old Jack is extremely tall and has very thick facial hair. Most of his male secondary sex characteristics are also more pronounced than men of his age. In this scenario, Jack is most likely:

A) an XYY male.
B) to be diagnosed with Klinefelter syndrome.
C) an XXY male.
D) to be diagnosed with Down's syndrome.