We probably should BR our RC by printing out a clean section and redoing it without time constraint. Currently I'm only rereading without time constraint and reviewing questions that I've circled.

B points out that, in the absence of the factor identified by the argument as the cause, there's also an absence of the effect. This is a standard way of strengthening a causal argument.

@2543.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?"

@2543.janson35: In this question there is only one hospital executive, hence the plural possessive pronoun "their" can only refer to the experts.

Ah, thanks for reminding. I haven't quite gotten that far yet in the PTs to see the change LSAC made, even though I've heard of it already.