A dealer originally bought 100 identical batteries at
a total cost of q dollars. If each battery was sold at
50 percent above the original cost per battery, then,
in terms of q, for how many dollars was each battery
sold?

(A)
3q/200

(B)
3q/2

(C) 150q

(D)
q/100+ 50

(E)
150/q : please give solution by picking numbers method !