Jack and Jill have gone out for cycling and they have come to a place where the road is obstructed by a fallen tree. They can move the tree if both of them try. If none of them​ tries, they have to turn back and reach home very late.​ However, if one of them tries while the other does not​ help, the one who tries will have a muscle sprain and will not be able to move the tree. The matrix below shows the utility each of them derives in each situation. The first number listed in each cell is the payoff to the row player and the second number listed is the payoff to the column player. Refer to the scenario above. Jack will derive​ units of utility if both of them try to move the tree.
A.5
B.−5
C.−2
D.10