Simply Asking People How Much They Value a Highway Is

Multiple Choice

Simply asking people how much they value a highway is not a reliable way of measuring the benefits and costs because

A) those who stand to gain have an incentive to tell the truth.
B) those who stand to lose have an incentive to exaggerate their true costs.
C) answers to the survey questions will always be downwardly biased.
D) not everyone asked will be using the highway.