The graphs of y \equal{} \minus{}|x \minus{} a| \plus{} b and y \equal{} |x \minus{} c| \plus{} d intersect at points (2,5) and (8,3). Find a \plus{} c.
<spanclass=′latex−bold′>(A)</span>7<spanclass=′latex−bold′>(B)</span>8<spanclass=′latex−bold′>(C)</span>10<spanclass=′latex−bold′>(D)</span>13<spanclass=′latex−bold′>(E)</span>18