Sophie arrived at her local grocery store. She notices a big red sign near the entrance. The following warning said, "ALL CUSTOMERS IN OUR STORE ARE REQUIRED TO WEAR FACE MASKS." She looks a bit closer and notices the fine text. It says, "Neither if you are sick or not."

Which answer choice BEST explains the obligation effect when wearing a mask when you are NOT sick?

A): None: You are wearing a mask for a long period of time, which is dangerous because you may result into suffocation.

B): None: You are wearing a mask but breathing in your carbon dioxide, which may result into sickness later on.

C): Medium: A mask will prevent coughs and/or sneezes, which is highly recommended by a majority of states in the US.

D): High: The mask will prevent all colds and coughs, but you are not able to breathe from it nonetheless.