(Table: Mary, Silvia Payoff Table) Refer to the Table

(Table: Mary, Silvia Payoff Table) Refer to the table. Maryand Silvia are producers. If Silvia cooperates, what is Mary'sdominant strategy?

A) to cheat and earn 40
B) to cheat and earn 15
C) to cooperate and earn 20
D) to cooperate and earn 40