Figure 3-1 Shows the Preferences of a Consumer Toward Reading

Multiple Choice

Figure 3-1 shows the preferences of a consumer toward reading books and watching movies.
-Refer to Figure 3-1.Given that the price of a book is $4 and a movie ticket costs $5,the consumer's marginal rate of substitution in equilibrium equals _____.

A) 1
B) 5/4
C) 4/5
D) Cannot be determined without more information