An 18-Year-Old Visits the Health Clinic for a Routine Check-Up

An 18-year-old visits the health clinic for a routine check-up. To determine whether a Pap test is needed, which question should the nurse ask?

A) "How old were you when your menstrual periods started?"
B) "Do you have any pain or cramping with your menstrual periods?"
C) "Have you ever had sexual intercourse?"
D) "Do you use any illegal substances?"