Answer:
A. Mary produces only cakes while Tim produces only pies
Step-by-step explanation:
I will start by describing the concept called comparative advantage. Comparative advantage can be described as a businesses ability to produce at a reduced or lower opportunity cost than others. Given this definition, we can see that Mary's opportunity cost of producing cakes is lower than Tims opportunity cost. So Mary has an advantage over Tim in the production of cakes. So the answer to this question is A. Mary should specialize in the making of cakes while Tim should specalize in pie making