answer with detailed explanation

Straw is a by-product of grain harvest such as wheat, cats and barley. It has many uses including as an input in biomass power plants. Suppose the demand for grain falls. What can we expect to happen in the market for straw? D Supply and price will both rise Demand and price will both fall Thy Supply will fall and price will rise CJ. Supply and price will both fall Demand and price will both rise