Kelsen vs Hans Kelsen

Yaar I and my dosto had a huge fight over this question. It's from CLAT UG, Jurisprudence section. Question is:

What is the concept of 'Pure Theory of Law' by Hans Kelsen?

A) Legal Positivism B) Natural Law Theory C) Sociological Jurisprudence D) Pure Law without any value elements

Now, I think the correct answer is D) Pure Law without any value elements. According to me, Kelsen ki teory is all about separating law from value judgments. He wanted to remove value components from the concept of law, making it a 'pure' theory.

But, my dosto is saying it's A) Legal Positivism. He claims that Kelsen's theory is all about focusing on the formal aspects of law, which is the core idea of Positivism.