What type of reaction occurs when gasoline is burned in an engine? A. Exothermic, because energy is released into the surroundings
B. Endothermic, because energy is released into the surroundings
O C. Exothermic, because energy is absorbed from the surroundings
D. Endothermic, because energy is absorbed from the surroundings

Ithink it is letter b, i may be wrong but i think that is the answer

The answer is water molecules are split.cellular respiration and photosynthesis are complement  reactions to each other. these are reverse reactions. in cellular respiration glucose and oxygen yield water and carbon dioxide. so, when respiration begins,  glucose molecules are split. in the opposite reaction - in photosynthesis, carbon dioxide and water yield glucose and oxygen. thus,  when respiration begins, water molecules are split.