A Problem with Cost-Benefit Analysis Is That

A problem with Cost-Benefit Analysis is that

A) scientists observe people's behavior to calculate how much individuals are willing to pay for a particular treatment.
B) opportunity cost is measured as the value of the next best alternative foregone.
C) the perspective of the one benefitting from the medical service must be included.
D) sometimes subtle distinctions in the alternatives considered as opportunity costs may overstate the benefits of a treatment.
E) the use of expected values employs the statistical law of large numbers and this is not acceptable for individual decision making analysis.