Larry's Lizards and Ronaldo's Reptiles are competing for pet store franchises. Both are considering opening a store in the small town of Turtleville. If Ronaldo's opens a profitable store in Turtleville and Larry's management determines that it is not profitable to also open a store, then:
a. this is a simultaneous game.
b. a Nash equilibrium is not possible in this game.
c. Ronaldo's had a first-mover advantage in this game.
d. this is a zero-sum game.