Sheb and Monty, Both Sheep Ranchers, Share a Pasture That

Sheb and Monty, both sheep ranchers, share a pasture that is open to both. Each rancher faces the choice of grazing 4 or 5 sheep on the commons. With 8 sheep on the commons, the grass will be plentiful and each sheep will produce 20 pounds of wool per year. With 9 sheep on the commons, the grass will will be sufficient enough for each sheep to produce 17 pounds of wool per year. With 10 sheep on the commons, the grass will be sparse, and each sheep will only produce 14 pounds of wool each year.
-This scenario is an example of a ________ game.

A) pure coordination
B) chicken
C) prisoner's dilemma
D) battle of the sexes