Professor Rush allocates his limited time between baking squirrel pies and knitting mittens . Professor Rush currently produces 15 squirrel pies and pairs of mittens each day . Professor Rush's opportunity cost of producing an additional squirrel pie is A. 0.2 pairs of mittens B. 1 pair of mittens C. 3 pairs of mittens D. 5 pairs of mittens E.There is too little information