Change Their Tastes and Preferences Via Their Utility Function to Match

Multiple Choice

change their tastes and preferences via their utility function to match the market's marginal rate of substitution.
-(Figure: Roses and Guns I) Which of the following output combinations does NOT fall on the production contract curve? I. guns, 20; roses, 2,000
II) guns, 15; roses, 2,800
III) guns, 90; roses, 750

A) I, II, and III
B) I
C) III
D) I and II