please solve in 1 hour complete

1: Question 2 (20 points) An organization is examining four mutually exclusive alternatives; Alpha, Beta, Gamma, and Delta. You can assume that each alternative represents a simple investment in which an initial investment is made in the present followed by uniform annual revenues for five years. The alternatives terminate simultaneously and at the same time of the last revenue is received. MARR = 20%. The results of feasibility analysis are summarized below: 2: 3: Project Initial Incremental IRR Values between investment Projects in Corresponding Column and Row Alpha Beta Gamma Delta Alpha $25,000 - Beta 5: $30,000 28.6% Gamma $40,000 19.9% 15.2% Delta $60,000 21.1% 19.9% 22.1% = For example, AIRRAlpha-Beta = 28.6% [a] Find the best alternative. Clearly explain your calculation and/or analysis steps. [b] Given all the previous information, calculate the IRR of the best alternative. Is it feasible