Suppose Jack Purchases Four Rolls of Brown Paper for Which

Multiple Choice

Suppose Jack purchases four rolls of brown paper for which he receives 100 units of total utility and two quarts of vinegar for which he receives 50 units of total utility. Assuming Jack maximizes utility, if the price of brown paper is $2 a roll, the cost of two quarts of vinegar must be:

A) $1 a quart.
B) $2 a quart.
C) $0.50 a quart.
D) It is impossible to tell.