No this is not ethical because its the opposite.
They both exercise the body, and keep it moving. Both of them help you with weight loss and keep the body active.
Answer: A. once you have sexual intercourse, you will keep exposing yourself to the risk of STIs and pregnancy.
Explanation: Absistence is a good idea for teenagers to prevent the guilt and pain that comes with sexual intercourse outside the bounds of marriage. Also it help prevents unwanted tennager preganacys and prevents and contracting plus spreading STIs.