Higher income raises the quantity of automobiles that consumers want to buy at every given price. For a normal good like cars, what does this do to the demand curve?

1. Income is a determinant of demand other than price, so a change in income shifts the whole curve. 2. Higher income raises the quantity buyers want at every price, not just at one price. 3. A curve that shows a higher quantity at every price has shifted to the right. 4. Options C and D describe movement along a curve, which only happens from a price change, not an income change. _Source: OpenStax Principles of Macroeconomics for AP Courses (CC BY 4.0), Ch 3 "Demand and Supply", section 3.2 | Shifts in Demand and Supply for Goods and Services_