Suppose Oklahoma decides to produce only two goods,oil and football helmets.If Oklahoma is producing on its production possibility frontier,as oil production increases,the production of football helmets will:

A) increase.
B) not change.
C) decrease at a necessarily decreasing rate.
D) decrease at some rate.

Production Possibility Frontier

A curve depicting all maximum output possibilities for two or more goods given a set of inputs (resources, labor, etc.), demonstrating the trade-offs in production volume between different commodities.

Oil

A viscous liquid derived from petroleum, used as fuel and in various industrial applications.

Football Helmets

Protective headgear used in American football designed to reduce the risk of head injuries.