So if I understand correctly, the sub-conclusion is a also called a major premise? And a minor premise is one that provides support to the sub-conclusion/major premise? Is that correct? And the sub-conclusion/major premise gives support to the main conclusion?

PTC S3 Q23:

So, the reason D is incorrect is because it is out of the scope of the argument. There is no mention of a written constitution. Additionally, the argument states political stability is dependent upon the illusion that the constitution is being interpreted (by political leaders) in the same regard as the authors intentions rather than by the preferences of contemporary political leaders.

You're reasoning is correct in stating that B is the correct answer because this a MSS question.

🫶🏽🫶🏽 I’m very interested!

So you can test the strength of an assumption within an argument by negating it. Is that correct?