The price reflecting the true social opportunity costs of a resource is known as a. a price index. b. a shadow price. c. an equilibrium price. d. a global price.

b. a shadow price.

Explanation:

The shadow price is the predicted price for anything which can not be normally priced in the market. It is applied in the cost-benefit accounting to measure the intangible asset value also it could be use to reveal the actual price of the share of the money market

So the price that represent the true opportunity cost would be a shadow price

answer a is correct answer

all of them make sense but, i would have to say ask someone who has been there/or lives there, and/or read recent newspapers from that city.

hope this !