Pieces of wood burn faster than a log of wood of the same mass because

Options

A. log of wood has larger surfae area and needs more time to burn
B. wood shavings have larger surface area
C. all pieces of wood burn at the same rate
D. log of wood has higher density than wood shavings

Explanation

Rate a heterogeneous reaction `prop` surface area of solid reactant.
Wood shavings posses greater surface area than a log of wood of same mass.