Which one of the following is NOT a pure strategy Nash equilibrium of this game?

QUESTION 1 Consider a simultaneous move game played by two players. Each player's action set is [0, co ) and the utility function of player / is -ti if tit; where i * j and V1 = 20, V2 = 10. Which one of the following is NOT a pure strategy Nash equilibrium of this game? Oa. (t,,t,) = (0, 20) Ob. (t ],t2 ) = (10, 0) Oc. (t ,, t;) = (10, 20) Od. (t , ,t, ) = (0, 30)