The Fact of Increasing Opportunity Cost When Moving on the PPF

Multiple Choice

The fact of increasing opportunity cost when moving on the PPF means that

A) when the government forces a movement from one point on the PPF to another point,no production is lost.
B) to increase the production of one product requires smaller and smaller sacrifices of the other good.
C) the PPF will be a negatively sloped straight line.
D) to increase the production of one product requires larger and larger sacrifices of the other good.
E) to decrease the production of one product requires smaller and smaller sacrifices of the other good.