Given That Sandy Can Produce 10 Economics Reports or 2

Multiple Choice

Given that Sandy can produce 10 economics reports or 2 sales calls and Tim can produce 2 economics reports or 1 sales call,which of the following would NOT be a mutually agreeable terms of trade for Sandy and Tim?

A) 1 economics report for 1 sales call
B) 1 sales call for 3 economics reports
C) 1 sales call for 4 economics reports
D) 1 economics report for 1/4 of a sales call