A circular mat with diameter 40 inches is placed on a square tabletop, each of whose sides is 30 inches long. Which of the following is closest to the fraction of the tabletop covered by the mat?	Choices:
A) 5/12 B) 2/5 C) 1/2 D) 1.395 E) 5/6
C.   It is a circle inscribed in a square.   Square side=24---&gt; square(table) area=24^2   Circle diameter=40---&gt; Circle area=PiR^2=4*100Pi (where Pi=~3.14)   covered fraction=4*100*3.14/30*30=4*314/900=1.395   1.395
<result>D</result>
A circular mat with diameter 40 inches is placed on a square tabletop, each of whose sides is 30 inches long. Which of the following is closest to the fraction of the tabletop covered by the mat?