Which of the following countries is not a member of the European Union?

Gabriel operates a ranch in Idaho where he raises cattle and grows potatoes. The figure above illustrates his production possibilities frontier. What is Gabriel's opportunity cost of growing another ton of potatoes?

A) 0 cows B) 1 ton of potatoes C) 80 cows D) 400 cows E) 100 cows

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.