Final answer:
A Pap smear is a common medical test used to screen for cervical cancer by examining cells from the cervix for any changes. It is performed by a cytotechnologist in a lab.
Step-by-step explanation:
A Pap smear is a common medical test in which a small sample of cells are taken from the uterine cervix of a patient and sent to a medical lab. A professional called a cytotechnologist then stains the cells and examines them for any changes that could indicate cervical cancer or a microbial infection. A Pap smear is a screening test for cervical cancer, making option B the correct answer.