Sector P has radius 8 cm and central angle 120°, while sector Q has radius 12 cm and central angle 90°. Which of the following statements is true regarding their areas?
a) Sector Q is larger by 344π cm2.
b) Sector Q is larger by 388π cm2.
c) Sector P is larger by 344π cm2.
d) Sector Q is larger by 15π cm2.