(Figure: Left Shoes and Right Shoes I) Nikolai Enjoys Eating

Multiple Choice

(Figure: Left Shoes and Right Shoes I) Nikolai enjoys eating sandwiches that have one slice of meat and two slices of cheese. His indifference curves are presented in Figure 4.12. Based on the shape of Nikolai's indifference curves, meat and cheese are:

A) perfect substitutes.
B) perfect complements.
C) consumed in changing proportions.
D) neither perfect substitutes nor perfect complements.