Squares ABCD and EFGH are congruent, AB=10, and G is the center of square ABCD. The area of the region in the plane covered by these squares is
[asy]
draw((0,0)--(10,0)--(10,10)--(0,10)--cycle);
draw((5,5)--(12,-2)--(5,-9)--(-2,-2)--cycle);
label("A", (0,0), W);
label("B", (10,0), E);
label("C", (10,10), NE);
label("D", (0,10), NW);
label("G", (5,5), N);
label("F", (12,-2), E);
label("E", (5,-9), S);
label("H", (-2,-2), W);
dot((-2,-2));
dot((5,-9));
dot((12,-2));
dot((0,0));
dot((10,0));
dot((10,10));
dot((0,10));
dot((5,5));
[/asy]
<spanclass=′latex−bold′>(A)</span>75<spanclass=′latex−bold′>(B)</span>100<spanclass=′latex−bold′>(C)</span>125<spanclass=′latex−bold′>(D)</span>150<spanclass=′latex−bold′>(E)</span>175