HELP!! Which BEST describes the role of chlorophyll in energy conversion?

A Chlorophyll excites photons of light energy and stores them.

B Chlorophyll converts chemical energy into radiant energy.

C Chlorophyll absorbs light and converts it to chemical energy.

D Chlorophyll converts oxygen and nutrients in order to drive metabolic activities.

Asample of digestive juice was removed from the stomach of a pig. the juice was placed in a test tube along with some grains of wheat. a second test tube was set up containing an equal number of wheat grains, with distilled water rather than digestive juice. the test tubes were kept for 8 hours at 40 degrees c. after 8 hours, the grains inside the digestive juice had broken into tiny particles. the grains of wheat, in the water, were wet but otherwise unchanged. what is the control group?