A Couple Is Discussing Alternatives for Pregnancy Prevention and Has

A couple is discussing alternatives for pregnancy prevention and has asked about fertility awareness methods (FAMs) .The nurse's most appropriate reply is

A) "They're not very effective, and it's very likely you'll get pregnant."
B) "They can be effective for many couples, but they require motivation."
C) "These methods have a few advantages and several health risks."
D) "You would be much safer going on the pill and not having to worry."