question attached

When there are n total cows, the production per cow was 10 71/2 (gallons per day) The daily milk production for a farmer with c cows is c X (10 11/2) (gallons per day) In the game between the farmers, each farmer may choose (Add a Cow) or (Don't Add a Cow). Is there a Nash equilibrium in this game when each farmer starts with 7 cows? (\"I The Nash equilibrium is (Don't Add a Cow, Don't Add a Cow) (\"I There are two Nash equilibria where one farmer chooses one strategy and the other farmer chooses the opposite strategy: (Don't Add a Cow, Add a Cow) and (Add a Cow, Don't Add a Cow) (\"I The Nash equilibrium is (Add a Cow, Add a Cow) (\"w The Nash equilibrium occurs when each farmer has S cows. (\"I The described game has no Nash equilibrium