You Can Spend $10 for Lunch and You Would Like

Multiple Choice

You can spend $10 for lunch and you would like to purchase two cheeseburgers. When you get to the restaurant, you find out the price for cheeseburger has increased from $5 to $6, so you decide to purchase just one cheeseburger. This is best described as:

A) the substitution effect of a price change.
B) the income effect of a price change.
C) a decrease in the buyer's reservation price.
D) an increase in the buyer's reservation price.