In the game show above, is/are the sub-game perfect Nash equilibrium efficient? O Multiple equilibrium, all efficient Multiple equilibrium, some efficient but some inefficient O Multiple equilibrium, all inefficient Single equilibrium, efficient O Single equilibrium, inefficient O No equilibriumQUESTION 7 Player 1 Player 2 P1 gets $73 P2 gets $2 P1 gets $75 P2 gets $1 P1 gets $56 P2 gets $56 P1 gets $124- P2 gets $28