A Pareto Optimal Allocation of Resources Implies That

Multiple Choice

A Pareto optimal allocation of resources implies that:

A) only one person can be made better off through trade.
B) no person can be made better off through trade.
C) no person can be made better off through trade,without harming another person.
D) through any feasible change in resource allocation,it is possible to make someone better off without leaving someone else worse off.