Suppose that 4 pounds of grapes yields one bottle of wine after 2 years of fermentation with no costs beside the price paid for grapes and waiting. If one bottle of wine costs $12.10 and the annual rate of interest is 10%, what is the price of 1 pound of grapes? (Hint: The present value refers to the total price of inputs)

		$2.00
		$10
		$2.50
		$11.00