Each of the 4 alternatives has a useful life of 40 years. If the MARR is 6%, which alternative should be selected? Solve the problem by benefit-cost ratio analysis. A B C D Initial cost ($) 9.5k 9.0k 8.4k 7.7k Annual operational cost($) 120 155 200 300 Annual benefit $800 (same for all alternatives) Fill in the blanks:

a) Ratio B/C ALT A

b) Ratio B/C ALT B

c) Ratio B/C ALT C

d) Ratio B/C ALT D

e) Selected alternative