A Midwife Is Teaching a Group of Clients Between the Ages

A midwife is teaching a group of clients between the ages of 19 and 20 about breast examination. Which of the following statements made by one of the participants indicates that further teaching is needed?

A) "Females should conduct a monthly breast examination starting at age 20."
B) "Females should have a clinical breast examination every three years from ages 20 to 39."
C) "Starting at age 40, females should have a yearly mammogram."
D) "Starting at age 40, clinical breast examination should be done every other year."