What Is the Difference Between Production Possibilities Frontiers That Are

Multiple Choice

What is the difference between production possibilities frontiers that are bowed out and those that are linear?

A) Bowed out production possibilities frontiers illustrate tradeoffs where linear production possibilities frontiers do not.
B) Bowed out production possibilities frontiers show increasing opportunity cost where linear ones show constant opportunity cost.
C) Bowed out production possibilities frontiers are the result of perfectly shiftable resources where linear production possibilities frontiers are not.
D) Linear production possibilities frontiers illustrate real world conditions more than bowed out production possibilities frontiers.