A Box of Graham Crackers Is Labeled "120 Calories Per $\times$

Multiple Choice

A box of graham crackers is labeled "120 Calories per serving." Assuming this means 120 kcal, and recalling that 4.16 J = 1 cal, the energy of a serving of the graham crackers is about

A) 5 $\times$ 10⁵ J.
B) 5 $\times$ 10⁴ J.
C) 4.2 $\times$ 10³ J.
D) 120 J.