Please Read the Following Paragraph and Then Answer the Following

Multiple Choice

Please read the following paragraph and then answer the following question(s) .
Birth control methods act at many points in the reproductive cycle. Some options, such as birth control pills, are highly effective at preventing pregnancy. However, only a few commonly available methods are effective at preventing the transmission of sexually transmitted disease. The Center for Disease Control estimates that each year about 10 million new STD infections strike people ages 15 to 24.
-A vasectomy ______.

A) prevents the production of sperm in the testes
B) prevents the production of semen
C) prevents the movement of sperm into the urethra
D) is an effective method to prevent the transmission of sexually transmitted disease