Under What Circumstance Is There a Mixed Nash Equilibrium for the Hawk-Dove

Multiple Choice

Under what circumstance is there a mixed Nash equilibrium for the hawk-dove game?

A) When the cost of fighting equals the benefit of a victory
B) When the cost of fighting is greater than the benefit of a victory
C) When the strategy of the other player is unpredictable
D) When all members of the population play hawk exclusively