What is the importance of interlocking the fingers and rubbing while washing hands?

it helps us clean the places that are hard to clean all at the same time while making suds to get rid of the dirt and dust that lies in the crevecas of your hands and interlocking the spreads the crevaces to get the dirt/dust out

Explanation:

answer:

i believe the answer is d).

explanation:

i think this is because you are tearing apart the muscle, and then when you eat, the muscle re-heals, making itself even stronger.

edit: i put b) before but i meant to put d). sorry for the incorrect answer.