The diagram illustrates budget lines for normal goods X and Y. What might cause the budget line to move from PQ to PR?
- Aprice of X: fall; price of Y: rise; level of consumer incomes: fall
- Bprice of X: no change; price of Y: rise; level of consumer incomes: no change
- Cprice of X: rise; price of Y: no change; level of consumer incomes: no change
- Dprice of X: rise; price of Y: no change; level of consumer incomes: rise