October 2010 LSAT Section 4 Question 3

If Lisa drives one of the cars, then which one of the following could be true?

John on April 14 at 05:10PM

Why are we assuming that G is always with Lisa

The video explanation for question 3 states that since "G is always with Lisa," but L is the necessary condition, not the sufficient one. So is it not possible to have L without G? I understand it might not be possible to do that once you factor in the other conditions, but I'm confused about how or why the video explanations assume that G must be in if L is in. my diagram: G --> L // not L --> not G

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John on April 14 at 05:21PM

Never mind.... I read the rules again, and I see that it's not an S&N condition.

Emil on April 16 at 10:06PM

Good catch!