Cervical cancer screening schedule.

• A. Ages 30-40: co-testing every 10 years.
• B. Ages 21-25: every 2 years; 26-65: annual cytology.
• C. Ages 18-29: HPV test every 5 years.
• D. Ages 21-29: cytology every 3 years; ages 30-65: co-testing every 5 years or cytology every 3 years.

Answer: (D)

Cervical cancer screening intervals depend on age and the screening method used. For people aged 21–29, the standard approach is cytology (Pap test) every 3 years. HPV testing is not used as primary screening in this age group because HPV infections are common and often transient, which would lead to unnecessary interventions if HPV alone were used for screening.

From age 30 through 65, screening can be done with cytology every 3 years or with co-testing (cytology plus an HPV test) every 5 years. Using both tests when negative allows a longer interval between screens while maintaining protection against cervical cancer.

The other options don’t match these intervals and age groups: one suggests a 10-year interval or applies HPV testing in younger ages as primary screening, and another suggests more frequent cytology than guidelines recommend.