Answer:
A) inelastic demand
Step-by-step explanation:
Demand is inelastic if a change in price has no effect on quantity demanded.
Changes in price has no effect on quantity of leather demanded. Therefore, the demand for leather is inelastic.
Direct purchasing is buying raw materials used in the production process.
Straight rebuy is purchasing similar goods from the same supplier under similar conditions.
Modified rebuy is purchasing similar goods either from a different supplier or in a different condition.