There Will Be No Gains from Specialization and Trade Between

There will be no gains from specialization and trade between two countries if
1) neither country has an absolute advantage in the production of any good;
2) neither country has a comparative advantage in the production of any good;
3) opportunity costs are the same in the two countries.

A) 1 only
B) 2 only
C) 3 only
D) 1 and 2
E) 2 and 3