25) The above figures show the market for HD televisions. If people's incomes increase and HD televisions are a normal good, which figure shows the effect of this change?

A) Figure A

B) Figure B

C) Figure C

D) Figure D

E) None of the figures represent this change.

26) The above figures show the market for HD televisions. Blu-ray players can be used to play HD movies. If the price of blu-ray players falls, then which figure shows the effect of this change in the market for HD televisions?

A) Figure A

B) Figure B

C) Figure C

D) Figure D

E) None of the figures represent this change.

27) The above figures show the market for HD televisions. If cable television providers lower the price of providing HD cable service, which figure shows the effect of this change ?

A) Figure A

B) Figure B

C) Figure C

D) Figure D

E) None of the figures represent this change.