Question

What must a country do to join the European Union?

A. Have a stable democratic system

B. Establish Christianity as a state religion

C. Reduce immigration

D. Adopt a Socialist system

Answer 1

A.Have a stable democratic system

Step-by-step explanation:

One of EU's main aims is to promote peace & democracy in the world.

the other options aren't directly/exactly in line with main aims of EU.