What is the total members of NATO after the membership of Croatia, Albania and Macedonia?

Option: B
Explanation :Last there states to join NATO are Albania(2009),Croatia(2009) and Montenegro(2017). As of 2019, NATO officially recognizes four aspiring members: Bosnia and Herzegovina, Georgia, North Macedonia and Ukraine. North Macedonia signed an accession protocol to become a NATO member state in February 2019, which is undergoing ratification by the member states.
So Macedonia is undergoing ratification while Albania,Croatia joined NATO in 2009.

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