Which statement best describes the process of respiration?

A. oxygen and sugar are used in the process that provides energy to cells, water and carbon dioxide are given off.

B. water and sugar are used in the process that provides energy to cells, oxygen and carbon dioxide are given off.

C. oxygen and carbon dioxide are used in the process that provides energy to cells, sugar and water are given off

D. carbon dioxide and sugar are used in the process that provides energy to cells and water and oxygen are given off.