A box of cereal can be purchased in the large size, which is 15 ounces for $3.64, or the family size, which is 24 ounces for $4.84. Which size box of cereal has the lowest price per ounce, and what is the amount?
 Large size at $0.24 per ounce
 Large size at $0.20 per ounce
 Family size at $0.24 per ounce
 Family size at $0.20 per ounce