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Shaded Area

ACTMAT-JYJQ4N

In the figure below, the combined diameters of the four congruent smaller semicircles make up the diameter of the larger semicircle.

If the diameter of the larger semicircle is 8 cm, what is the area of the shaded region, in square centimeters?

A

$ {4\pi} $

B

$ {6\pi} $

C

$ {12\pi} $

D

$ {24\pi} $

E

$ {48\pi} $