After the Price of Milk Increases, David Buys More Eggs

Multiple Choice

After the price of milk increases, David buys more eggs and less cereal. For David

A) milk, eggs, and cereal are all complements.
B) milk and eggs are complements, and milk and cereal are substitutes.
C) milk and eggs are substitutes, and milk and cereal are complements.
D) milk, eggs, and cereal are all substitutes.