Final answer:
A steeper supply curve generally indicates that the supply is price inelastic, meaning there is a low responsiveness to changes in price.
Step-by-step explanation:
In general, a steeper supply curve indicates that the supply is less responsive to changes in price; hence it is more likely to be price inelastic. This is due to the fact that when a supply curve is steeper, a significant change in price leads to a smaller relative change in the quantity supplied as compared to a flatter curve. Using this understanding, the correct answer to the question is (4) price inelastic.