http://classic.7sage.com/lsat_explanations/lsat-june-2007-section-2-question-17/
The correct answer choice is B: "[t]he argument relies on the testimony of experts whose expertise is not shown to be sufficiently broad to support THEIR general claim."
I think this choice would only be correct if the "THEIR," the "experts" I assume being the referent, is changed to "its," the argument being the referent, because it is the hospital executive who's making a claim beyond the scope of the testimony of these experts.
Thoughts?
@.hopkins: In your interpretation, the answer choice is attacking a premise of the argument. Isn't that suspect? Should I be expected to have enough "common sense" to know that computer experts' expertise doesn't support their claim on "the most significant threat faced by large institutions?"
@.janson35: In this question there is only one hospital executive, hence the plural possessive pronoun "their" can only refer to the experts.