Suppose two drugs are routinely used for treatment of a particular kidney disorder. drug 1 is known to cure the disease 85% of the time and costs $90. drug 2 is known to cure the disease 70% of the time and costs $65. the two drugs work independent of each other (that is, administration of one has no effect on the efficacy of the other). the two treatment plans are as follows:

plan
a. treatment with drug 1—if not effective, treatment with drug 2.
plan
b. treatment with drug 2—if not effective, treatment with drug 1.

which statement is most correct in this situation?

a. based on the overall probability of a cure, plan a should be selected over plan
b.
b. based on the overall probability of a cure, plan b should be selected over plan
a.
c. based on the overall cost of treatment, plan a should be selected over plan
b.
d. based on the overall cost of treatment, plan b should be selected over plan
a.
e. based on the probability of a cure and the cost of treatment, both plans are equivalent, so either can be selected.