When Carbon Is Burned in Air the Following Reaction Takes $\rightarrow$

When carbon is burned in air the following reaction takes place and releases heat.

C(s) + O₂(g) $\rightarrow$ CO₂(g)
Which of the following is responsible for the heat produced?

A) breaking oxygen-oxygen bonds
B) making carbon-oxygen bonds
C) breaking carbon-carbon bonds
D) both (a) and (c)
E) (a) , (b) and (c)