Research Question: Why are pickles stored in salt water?
Which hypothesis is based on this research question?

A.Pickles are green because that is a popular color.

B.It is well-documented that pickles are fun to eat.

C.Pickles are stored in salt water to prevent them from spoiling.

D.A grocery store will sell more pickles when the pickle jars are shelved at eye level than when they are shelved near the floor.