A Couple Is Seeking Infertility Information from the Nurse

A couple is seeking infertility information from the nurse. Which statement made by the couple would indicate the need for intervention by the nurse?

A) "We have been to two doctors already."
B) "We have intercourse at least three times a week."
C) "We are using temperature tracking for ovulation prediction."
D) "We have been trying to conceive for a year."