What is the value of the expression 1+2+3+4+5+6+7+81⋅2⋅3⋅4⋅5⋅6⋅7⋅8?<spanclass=′latex−bold′>(A)</span>1020<spanclass=′latex−bold′>(B)</span>1120<spanclass=′latex−bold′>(C)</span>1220<spanclass=′latex−bold′>(D)</span>2240<spanclass=′latex−bold′>(E)</span>3360