Fact Pattern 18-A Refer to the Following Data

Fact Pattern 18-A
Refer to the following data:
Alpha can produce either 18 tons of oranges or 9 tons of apples in a year, while Omega can produce either 16 tons of oranges or 4 tons of apples.
-Refer to Fact Pattern 18-A.The opportunity costs of producing 1 ton of oranges for Alpha and Omega, respectively, are:

A) 0.25 tons of apples; 0.5 tons of apples.
B) 9 tons of apples; 4 tons of apples.
C) 2 tons of apples; 4 tons of apples.
D) 4 tons of apples; 2 tons of apples.
E) 0.5 tons of apples; 0.25 tons of apples.