Use the Following to Answer Question

Use the following to answer question:
Figure 15.4
-(Figure 15.4) What is the name of curve A, and what is its significance?

A) contract curve: shows all possible Pareto-efficient allocations of pancakes and cereal between Elaine and Jerry
B) contract curve: shows all possible allocations of pancakes and cereal that give Elaine and Jerry equal utility
C) output curve: shows all possible combinations of pancakes and cereal that can be produced at a constant per-unit cost
D) isoprofit curve: shows all possible combinations of pancakes and cereal that give the manufacturers equal profit