In the figure given below both the semicircles have radius 7 units each and AB is a tangent to these semicircles. The area (in sq. units) of the portion 

in the figure is

A

$$98(4 - \pi)$$

B

$$49(4 - \pi)$$

C

$$24.5(4 - \pi)$$

D

$$14.79(4 - \pi)$$