The Money Price of a Litre of Milk Is $3

The money price of a litre of milk is $3.33 and the money price of a litre of gasoline is $1.11.The relative price of a litre of gasoline in terms of milk is

A) $2.22.
B) $1.11.
C) 3 litres of milk.
D) 1/3 litre of milk.
E) $3.33.