Two Ideal Parallel-Plate Capacitors Are Identical in Every Respect Except $C$

Two ideal parallel-plate capacitors are identical in every respect except that one has twice the plate area of the other. If the smaller capacitor has capacitance $C$ , the larger one has capacitance

A) $4 C$ .
B) $2 \mathrm { C }$ .
C) $C / 2$ .
D) $\mathrm { C }$ .