Photosynthesis can be described as the process that

a
uses carbon dioxide and water, in the presence of sunlight, to produce food (glucose) and oxygen.
b
uses glucose and oxygen, in the presence of sunlight, to make ATP.
c
uses glucose and oxygen to produce energy for the cell (ATP), releasing carbon dioxide and water.
d
uses carbon dioxide and water, in the presence of sunlight, to produce ATP and oxygen.

a

uses carbon dioxide and water, in the presence of sunlight, to produce food (glucose) and oxygen.