What is the EMV for decision alternative 1 (D1) if the payoff for (D1, S1) is $75,000; payoff (D1, S2) is $80,000, and payoff (D2, S1) is $60,000 and payoff (D2, S2) is $130,000 given that the probability of S1 is 40% and for S2 is 60%. O a. 80,000 O b. 78,000 O c. 78,500 O d. 80,750 e. 75,000