Refer to the Reaction Shown

Multiple Choice

Refer to the reaction shown. C₃H₈ + 5 O₂  3 CO₂ + 4 H₂O + energy
Which statement about the reaction is true?

A) O₂ is a product.
B) Chemical bonds are conserved during the reaction.
C) The same atoms are present before and after the reaction.
D) A net input of energy is needed for this reaction.
E) The products are similar to the reactants.