Suppose That the Total Production of an Economy Consists of 10

Suppose that the total production of an economy consists of 10 oranges and 5 candy bars, each orange sells for $0.20, and each candy bar sells for $1.00. Which expression of the output of this economy is most consistent with the concept of GDP?

A) This economy produces two-thirds oranges and one-third candy bars.
B) This economy produces food valued at $1.20.
C) This economy produces 15 food items.
D) This economy produces $7.00 worth of food.