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What does the oxygen-heat price of food mean?
A.
Energy released by oxidation of 1 gram of food
B.
Energy released when food oxidation consumes 1 liter of oxygen
C.
The energy released when 1 g ram of food is consumed by 1 liter of oxygen
D.
The energy released by 1 gram of food during metabolism in the body
E.
The heat produced by burning 1 gram of food in vitro