1. Correct the following statements, if needed, so that terms "demand', "quantity demanded", are used correctly. Write down the correct sentence.
a. As price of pizza increases, consumers demand less pizza
b. An increase in incomes of cars buyers will increase the quantity demanded for cars
c. An increase in the quantity demanded of lobsters that means consumers are willing and able to buy more lobsters at all possible prices.
d. The price of electricity is cheaper in the northwestern part of the United States and therefore the demand for electricity is greater in the northwestern.