Exhibit 2.1 ​

Exhibit 2.1
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-Refer to Exhibit 2.1 which shows the production for rice and T-shirts for two countries: Costa Rica and the United States. In the United States, the opportunity cost of 1 ton of rice is: For answer to be correct, for the United States, on the vertical axis, maximum T-shirt production should touch 1000 units.

A) equal to 1/2 of a T-shirt.
B) equal to 3/4 of a T-shirt.
C) equal to 1 T-shirt.
D) equal to 11/2 T-shirts.
E) equal to 2 T-shirts.