Answer the question on the basis of the accompanying production possibilities tables for two countries, Latalia and Trombonia.

Latalia's production possibilities

A B C D E

Pork (Tons) 4 3 2 1 0

Beans (Tons) 0 5 10 15 20

Trombonia's production possibilities

A B C D E

Pork (Tons) 8 6 4 2 0

Beans (Tons) 0 6 12 18 24

Refer to the tables. In Latalia the domestic real cost of 1 ton of pork:

A) is 3 tons of beans.

B) diminishes with the level of pork production.

C) is 5 tons of beans.

D) is 1/5 of a ton of beans