Which of these is NOT a difficulty in calculating the benefit of a public good?

Question

Quizplus · Accepted Answer

The primary difficulties in calculating the benefit of a public good include estimating willingness to pay, forecasting future benefits, and coordinating among interested parties. Difficulty in access for those who want the good is not typically considered a challenge in calculating its benefit, as public goods are non-excludable and available to all, regardless of individual contribution.

Which of These Is NOT a Difficulty in Calculating the Benefit