Which of the following is a testable hypothesis that juanita could make in order to conduct an experiment concerning her problem?

a. what is the best way to kill or wash off any microorganisms in the fresh produce used by the restaurant?

b. what does the local health code say concerning the treatment of produce?

c. fresh produce will taste better if it is irradiated in order to kill all of the microorganisms on the produce.

d. produce must be washed under running water for 10 minutes in order to remove all microorganisms on the produce.