Sketch indifference curves for the following bundle of goods. For each graph, make sure to show the direction of increasing satisfaction.

A) Education and travel. (You like both.)
B) Skis and bindings. (You wear out exactly four pairs of skis for every pair of bindings you wear out.)
C) Garbage and composite good. (You dislike garbage but like composite good.)
D) $100 bills and $20 bills.