Consider the following 5 investment opportunities for a drug development project Project Required Investment Annual Savings over 10 vears $100 $200 $300 $250 $100 $35 $60 $70 $50 $30 Projects A and B are mutually exclusive Project C is contingent upon Project A. Projects D and E are also mutually exclusive a. How many mutually exclusive decision alternatives are in the problem including the do-nothing alternatives? [6 points] b. What is the total required investment for each alternative? [2 points] c. What is the total annual savings over 10 years for each alternative? [2 points]