$1$ Which of the following statemerts are true?

I. A factory supervisor's salary would be classified as an indirect cost with respect to a unit of product.

II$.$ A direct cost is a cost that can be easily traced to the particular cost object under consideration.

III. A cost can be direct or indirect. The classification can change if the cost object changes.

Only statement I is true.

Statements I and II are true.

All of the statements are true.

None of the statements are true.