1. This is the full question there is nothing missing

Given the PPFs of two countries that are free to trade with one another, which of the following production combinations is/are most efficient?

I.Country 1 produces at point C and Country 2 produces at point D

II.Country 1 produces at point E and Country 2 produces at point B

III.Country 1 produces at point E and Country 2 produces at point A

IV.Country 1 produces at point A and Country 2 produces at point D

A)Only I.

B)Only II.

C)Only III.

D)Only IV.

E)Only I and II.

F)Only I and III.

G)Only I and IV.

H)Only II and III.

I)Only II and IV.

J)Only III and IV.

K)Only I, II, and III.

L)Only I, III and IV.

M)Only II, III, and IV.

N)Only I, II, and IV.