Tom and Jerry Have Two Tasks to Do All Day

Multiple Choice

Tom and Jerry have two tasks to do all day: set traps and build bombs.If Tom spends all day setting traps,he will have set 16 traps.If he instead devotes his day to building bombs,Tom will build 4 bombs.If Jerry spends his day setting traps,he will set 14 traps;if he spends the day building bombs,he will build 7 bombs.For Jerry,the opportunity cost of building a bomb is ________ traps set.

A) 14
B) 7
C) 4
D) 2