Minors are liable for the reasonable value of the necessary:. a. actually furnished.
b. that they agreed to purchase.
c. that their parents agreed to pay for.
d. all of these.

b. that they agreed to purchase.

Explanation:

A minor is a person who is under the age of 18 and unable to make decision on his own such as mentally impaired or incompetent persons .

A minor cannot enter a contract like adults but if under any circumstance they enter into a contract of sale purchase of daily goods like clothing etc, they are liable to pay the price which they agreed to pay.

Their parents are liable only if the contract was made according to the parent's will etc.

If the minor is unable to pay the agreed amount then the minor should return the goods or fulfill any other liability as imposed by the court of law.

answer; exemplars;