Maria is weighing a glass jar filled with marbles. The weight of each marble is 4 grams and the weight of the empty jar is x grams. There are 72 marbles in the glass jar and the total weight of the marbles and the glass jar is 703 grams.

Which equation could be used to find x, the weight of the empty glass jar?

A.
703 = 4x ÷ 72
B.
703 = 4(72) + x
C.
703 = 4x + 72
D.
703 = 72x + 4