Final answer:
The quantity demanded at the current price is the total number of units consumers are willing to purchase. The quantity demanded moves inversely with price changes, which is described by the law of demand. Shifts in the demand curve represent changes in quantity demanded at different prices. Thus,. the correct option is C.
Step-by-step explanation:
The quantity demanded at the current price is the total number of units that consumers are willing to purchase at that price. When the price of a good or service changes, the quantity demanded will change in the opposite direction. This concept is known as the law of demand. If price increases, the quantity demanded tends to decrease, and vice versa. For example, if the price of a car decreases from $18,000 to $16,000, the quantity demanded might increase from 16.0 million to 17.6 million units, assuming all other factors remain constant.
Shifts in demand are represented graphically in demand curves. If there's an increase in demand, the curve will shift to the right from Do to D1, indicating at every given price, the quantity demanded is higher. Conversely, a decrease in demand shifts the curve to the left from Do to D2, showing that at every given price, the quantity demanded is lower. These shifts can occur due to various factors outside of price that affect overall demand for a product. Thus,. the correct option is C.