Suppose There Are Only Two Goods: Lettuce and Grapes

Suppose there are only two goods: lettuce and grapes.In California,a head of lettuce sells for 50¢ and a bunch of grapes sells for $1.In Nebraska,25¢ must be added to these absolute prices to cover transportation costs.How do these transportation costs affect the relative prices of lettuce and grapes?

A) The transportation costs do not affect the relative prices of lettuce and grapes.
B) The relative prices of lettuce and grapes are both higher when transportation costs are added.
C) The addition of transportation costs makes the relative price of grapes higher and the relative price of lettuce lower.
D) The transportation costs raise the relative price of lettuce but lower the relative price of grapes.