Which of the following about Valuation of Environmental Goods are true?

A) The Hedonic Pricing Method uses differences in wages to estimate the value of environmental amenities.
B) The Contingent Valuation Method estimates values based on people’s willingness to pay through surveys.
C) The Benefit Transfer Method applies existing data on environmental goods from one place to another.
D) Travel Cost Method is typically used to value goods that are not directly marketed.