The Energy Equivalent of O₂ Is
A) 4 $\degree$ C
D) 4

The energy equivalent of O₂ is

A) 4.8 kilocalories of energy liberated per liter of O₂ consumed
B) used to indirectly measure the metabolic rate
C) the energy required to raise 1 gm of H₂O 1 $\degree$ C
D) 4.8 kilocalories of energy liberated per liter of O₂ consumed and used to indirectly measure the metabolic rate
E) all of these