X, a minor, bought a chain saw for use in cutting some timber to earn spending money. X did not keep the saw oiled properly, and the saw became damaged. X took the saw back to the store where X had purchased it, tendered back the saw, and asked for the money back.

X has effectively disaffirmed the contract.

X need only return the damaged saw to receive back what X paid.

X will not be responsible for the damage to the saw even though X was negligent.

All of the above.