Why Does Wood Keep Burning Once It Is Lit

Multiple Choice

Why does wood keep burning once it is lit?

A) Intermediates from the reaction drive the reaction forward.
B) Energy is given off during the reaction that drives the reaction forward.
C) The products have more energy than the reactants, therefore driving the reaction forward.
D) The reactants have more energy than the products, therefore driving the reaction forward.
E) The activation of the energy drives the reaction forward.