Answer:
A. Respect human rights
Step-by-step explanation:
-Any country that satisfies the conditions for membership can apply.
-a state needs to fulfil economic and political conditions called the Copenhagen criteria
-it must be a European state; it must respect the common values of the Member States and undertake to promote them.
-These conditions are known as the 'Copenhagen criteria' and include a functioning market economy, a stable democracy and the rule of law, and the acceptance of all EU legislation, including of the euro.
-Three countries agree to remove barriers to trade between member countries and adopt a common external trade policy toward nonmembers.