Answer: price inelastic; low
Explanation:
An increase in wheat production lead to a substantial decline in wheat prices. Wheat is treated as a necessity good for many individuals, it does not have fairly good substitutes. Therefore, the demand for wheat is price inelastic so that even a large increase in price of wheat will lead to a small decrease in its quantity. While, demand for wheat has a low income elasticity. It means that a substantial rise in income will not lead to a large increase in the demand for wheat.