The correct option is B The individual buys more of a commodity at lower prices
Demand curve slope downwards as because the individual buys more of a commodity at lower price. Hence, because of the inverse relationship between price and quantity demanded, the demand curve slope downward. Demand graph indicates that the quantity
demanded of a product gets increased when the price falls, other things
remaining constant.The consumer
demand as a function of price is q=d(p). It states that quantity
demanded changes when the price of the product varies.