Biology

The correct answer is: A.Photosynthesis.

Chloroplasts are the organelles in plant cells (and some algae) responsible for photosynthesis, which is the process by which light energy is converted into chemical energy. In photosynthesis, chloroplasts use sunlight, carbon dioxide, and water to produce glucose (a form of sugar) and oxygen. The key molecule in chloroplasts that absorbs light energy is chlorophyll, a pigment that gives plants their green color.

To clarify the other terms:

B.Cellular respiration: This process occurs in the mitochondria (not chloroplasts) of...