The Nazianz party was also known as National Socialist party
Since A, B and C are correct. I think the answer is D. Linguistic grammaticality and content or effective communication are separate matters.
Answer:
When water is allowed to flow into the condenser, it surrounds the inner tube and creates a cooling effect. That way when the vapors from the boiling liquid hit the cool area of the Liebig condenser, they condense back to liquid form, which is how the condenser actually works.