Suppose That an Economy Produces 20,000 Units of Good a Which

Suppose that an economy produces 20,000 units of good A which sells at $3 a unit and 40,000 units of good B which sells at $1 per unit.Production of good A contributes

A) 1/3 times as much to GDP as the production of good B.
B) 3/2 times as much to GDP as the production of good B.
C) 3 times as much to GDP as the production of good B.
D) 2/3 times as much to GDP as production of good B.