Refer to the Figure Below

Refer to the figure below. A living cell carries out this chemical reaction in many steps with a very small release of heat.The same chemical reaction can be carried out in one step in a chemistry lab using special equipment with the release of a very large amount of heat.Which statement related to this observation is correct?

A) Although the overall chemical reactions are the same, the cellular reaction involves less energy release than the reaction carried out in the lab.
B) The total amount of energy present before a reaction can change by the end of the reaction, depending on how the reaction proceeds.
C) Energy is not conserved in reactions carried out in laboratories; it is only conserved in reactions in living organisms.
D) Energy that escapes as heat is not considered when accounting for the changes in energy during any chemical reaction.
E) Energy in equals energy out in both cases, but most of the energy released is diverted to chemical bond energy in the cell instead of being released as heat.