LSAT PrepTest 28 Section 3 Question 19 Explanation | Logical Reasoning

I didn't write the following blog post. It was already on the blog when I took over the URL. The following blog post may contain mistakes. -Steve*** This Logical Reasoning question is from the June 1999 LSAT. It's a good illustration of the “Negation Technique” for assumption questions.Because the Question Stem is asking for a necessary assumption (an assumption upon which the argument depends),