I just recently solved the question referenced above, a MBT question with heavy conditional reasoning. I understand why TCR is what it is, but it took me WAY too long to solve this question. Even in hindsight/BR, I don't know ...
So I fell for a sufficient assumption trap, I chose the answer that was basically a restated premise, so for the assumption questions, the answer that is basically a premise, is that always wrong? TYA!