Jane is faced with two choices: a Porsche costs $60,000 and gives her an additional 1200 units of utility, and a mountain bike costs $800 and gives her an additional 20 units of utility. Rational choice theory would predict that she would choose:

a. The Porsche

b. The mountain bike

c. It is impossible to choose because the goods have different prices.

d. It is impossible to predict since there is not enough information provided.