Tom Takes 20 Minutes to Cook an Egg and 5

Tom takes 20 minutes to cook an egg and 5 minutes to make a sandwich. Jerry takes 15 minutes to cook an egg and 3 minutes to make a sandwich. Both individuals gain if

A) Jerry produces eggs and trades them to Tom for sandwiches.
B) Jerry produces sandwiches and trades them to Tom for eggs.
C) they trade with each other regardless of who produces sandwiches and who produces eggs.
D) the opportunity cost of producing an egg is greater than the opportunity cost of producing a sandwich.
E) the opportunity cost of producing a sandwich is greater than the opportunity cost of producing an egg.