Ineed ! i don’t know if it’s either a or d! apex

Option AThe answer is  

Explanation:

Given :

6 moles of a compound on reaction produces or gives Δ is the energy produced during the reactionThis is also equal to the energy released when the compound reacts ( breakdowns and turns into a new one )Thus the Δ per mole :

                 Δ

The answer is which is A

Ithink it’s 3 as the answer.