The correct option is A True
The slope of
production possibility curve shows the marginal opportunity cost which refers to the
additional sacrifice that an economy must make when they shift resources and technology
from production of one commodity to the other. Since resources are use
specific, therefore, each time when one more unit of a commodity is produced a larger quantity of the other commodity is required to be sacrificed. This results in increasing
marginal opportunity cost., which is denoted by the slope of the PPC.