Zarina Can Afford to Buy 3 Tomatoes and No Toothbrushes,or

Multiple Choice

Zarina can afford to buy 3 tomatoes and no toothbrushes,or 2 toothbrushes and no tomatoes.The relative price of a toothbrush is

A) 2/3 of a tomato.
B) 3/2 tomatoes.
C) 6 tomatoes.
D) 1/6 of a tomato.
E) impossible to calculate without additional information.