A 14-Year-Old Boy and His Parents Are Concerned About Bilateral

A 14-year-old boy and his parents are concerned about bilateral breast enlargement.The nurse's discussion of this should be based on knowing that:

A) This is usually benign and temporary.
B) This is usually caused by Klinefelter's syndrome.
C) Administration of estrogen effectively reduces gynecomastia.
D) Administration of testosterone effectively reduces gynecomastia.