Tom Takes 20 Minutes to Cook an Egg and 5

Multiple Choice

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. If Tom and Jerry specialize and trade eggs and sandwiches with each other,

A) Tom benefits but Jerry does not.
B) Jerry benefits but Tom does not.
C) neither Tom nor Jerry benefit.
D) either Tom or Jerry benefit but we don't have enough information to know which one benefits.
E) both of them benefit.