There are three treatment methods for a disease: A, B and
C.  Effect A=20, Effect B=25, Effect C=50; cost ($000's)
A=$60,  cost ($000's) B=$75,  cost ($000's)
C=$125; benefit ($000's) A=$64,  benefit ($000's)
B=$60,  benefit ($000's) C=$200.
a. Calculate Incremental cost-effectiveness ratio, cost benefit
analysis and average cost-effectiveness ratio in $000's (show the
formulas and calculations).
b. Compare these three projects within the framework of economic
evaluation.