He point where the ppf intersects the horizontal axis is a. unattainable. b. attainable and productive efficient. c. attainable but productive inefficient. d. attainable and neither productive efficie

He point where the ppf intersects the horizontal axis is

a. unattainable.

b. attainable and productive efficient.

c. attainable but productive inefficient.

d. attainable and neither productive efficient nor productive inefficient.