Michael can buy either pizzas or submarine sandwiches. If the prices of pizzas and submarine sandwiches double and Michael's money income triples, we can conclude that Michael's budget constraint will

A) shift in but remain parallel to the old one.
B) shift out but remain parallel to the old one.
C) swivel in so that the slope of the budget constraint is doubled.
D) remain unchanged.

Budget Constraint

The limit on the consumption bundles that a consumer can afford to purchase with a limited amount of income.

Submarine Sandwiches

A type of sandwich consisting of a long roll of bread filled with meats, cheese, vegetables, and condiments, also known as a sub, hoagie, hero, or grinder.

Pizzas

A popular dish of Italian origin consisting of a flat round base of dough baked with a topping of tomato sauce and cheese, typically with added meat, fish, or vegetables.