Write the next sentence in the following story.

How to test vaginal ph
Wash your hands.
Before you begin, wash your hands thoroughly using soap and warm water. Rinse your hands completely, and dry them using a clean towel.

(A). You do not want to use gloves when you will be conducting your test. Also be sure to wash your hands thoroughly after speaking to your doctor.
(B). Remove the ph swab from its package and read the instructions. Do not let the ph paper come into contact with anything before use.
(C). Then place a small-quantity of vaginal ph lancet (a soft brush) into the back of your hand. Use your fingernail or gum to press down on the area where the ph is heaviest and largest.
(D). Most vaginal ph tests can detect vaginal ph by its presence in the vagina and in women with multiple sexual partners. Use a loofah to gently rinse your hands.. The answer should be
(B).