The plane is tiled by congruent squares and congruent pentagons as indicated. The percent of the plane that is enclosed by the pentagons is closest to
<spanclass=′latex−bold′>(A)</span>50<spanclass=′latex−bold′>(B)</span>52<spanclass=′latex−bold′>(C)</span>54<spanclass=′latex−bold′>(D)</span>56<spanclass=′latex−bold′>(E)</span>58
[asy]unitsize(3mm);
defaultpen(linewidth(0.8pt));path p1=(0,0)--(3,0)--(3,3)--(0,3)--(0,0);
path p2=(0,1)--(1,1)--(1,0);
path p3=(2,0)--(2,1)--(3,1);
path p4=(3,2)--(2,2)--(2,3);
path p5=(1,3)--(1,2)--(0,2);
path p6=(1,1)--(2,2);
path p7=(2,1)--(1,2);
path[] p=p1^^p2^^p3^^p4^^p5^^p6^^p7;
for(int i=0; i<3; ++i)
{
for(int j=0; j<3; ++j)
{
draw(shift(3*i,3*j)*p);
}
}[/asy]