Charlie's indifference curves have the equation xB = constant/xA, where larger constants denote better indifference curves. Charlie strictly prefers the bundle (6, 16) to
a. the bundle (16, 6).
b. the bundle (7, 15).
c. the bundle (10, 11).
d. more than one of these bundles.
e. none of these bundles.
Can someone please help or explain how to reach the answer?