________________Describes the Situation Where Consumers Are "Willing and Able to Pay

________________describes the situation where consumers are "willing and able to pay" to protect wildlife habitat, or save endangered species, or safeguard prime agricultural land for future generations to experience and enjoy.

A) Option Demand
B) An Initial intertemporal endowment position
C) The intertemporal production function
D) A market externality
E) A pure public good