Suppose That an Economy Produces 30,000 Units of Good a Which

Suppose that an economy produces 30,000 units of good A which sells at $3 a unit and 60,000 units of good B which sells at $2 per unit.Production of good A contributes

A) 1/2 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) 3/4 times as much to GDP as the production of good B.
D) 4/3 times as much to GDP as production of good B.