The Difference Between Production Possibilities Frontiers That Are Bowed Out

Multiple Choice

The difference between production possibilities frontiers that are bowed out and those that are straight lines is that

A) bowed-out production possibilities frontiers apply to economies that face tradeoffs, whereas straight-line production possibilities frontiers apply to economies that do not face tradeoffs.
B) bowed-out production possibilities frontiers apply to economies in which resources are not specialized, whereas straight-line production possibilities frontiers apply to economies in which resources are specialized.
C) bowed-out production possibilities frontiers illustrate increasing opportunity cost, whereas straight-line production possibilities frontiers illustrate constant opportunity cost.
D) straight-line production possibilities frontiers illustrate real-world conditions, whereas bowed-out production possibilities frontiers illustrate more simplistic assumptions.