This is a question with answer options. Goal: clean your makeup brush

Which of the following methods is more reasonable for accomplishing this goal?

Available choices:
a). Wet the bristles with lukewarm water. Place a drop of makeup brush cleanser or soap into the palm of your hand. Gently massage the tips of the bristles in your mouth Rinse the bristles. Squeeze out the excess moisture with a clean towel. Reshape the brush head..
b). Wet the bristles with lukewarm water. Place a drop of makeup brush cleanser or soap into the palm of your hand. Gently massage the tips of the bristles in your palm. Rinse the bristles. Squeeze out the excess moisture with a clean towel. Reshape the brush head.....I think the answer is
b).