The twelve-sided figure shown has been drawn on 1 cm×1 cm graph paper. What is the area of the figure in cm2?[asy]
unitsize(8mm);
for (int i=0; i<7; ++i) {
draw((i,0)--(i,7),gray);
draw((0,i+1)--(7,i+1),gray);
}
draw((1,3)--(2,4)--(2,5)--(3,6)--(4,5)--(5,5)--(6,4)--(5,3)--(5,2)--(4,1)--(3,2)--(2,2)--cycle,black+2bp);
[/asy]<spanclass=′latex−bold′>(A)</span>12<spanclass=′latex−bold′>(B)</span>12.5<spanclass=′latex−bold′>(C)</span>13<spanclass=′latex−bold′>(D)</span>13.5<spanclass=′latex−bold′>(E)</span>14