Farmer Teva (sorry, you can no longer blame Farmer Brian...) has 4 acres of land on which he efficiently grows apples and/or oranges. All acres of land yield 100 bushels of apples, however they differ when growing oranges. One acre yields 400 bushels of oranges, one acre yields 300 bushels of oranges, one acre yields 50 bushels of oranges and one acre yields 20 bushels of oranges.

If Teva has 1 acre growing apples initially, what would be the opportunity cost of growing one more bushel of oranges?

Group of answer choices

5 bushels of apples

1 bushel of apples

1/3 of a bushel of apples

3 bushels of apples

1/2 of a bushel of apples

0.519 bushels of apples

4 bushels of apples

1/5 of a bushel of apples

2 bushels of apples

1/4 of a bushel of apples