What does the Question Stem tell us?
Flaw (weird question stem, but it's saying that Jack's response "trades on an ambiguity", which is the famous flaw of Equivocation)
Break down the Stimulus:
Conclusion: Hazard insurance doesn't decrease risk by spreading risk among the pool of policyholders.
Evidence: Buying fire insurance for my house don't decrease the chance that my house will burn down.
Any prephrase?
Jack is saying "buying insurance won't lessen the RISK of my house burning down". Melinda was saying that buying insurance lessens "the RISK that you'll have to pay a ton of money to fix something that got broken". Paying for car insurance obviously doesn't affect your likelihood of getting into an accident, but it decreases the risk that you'll all of a sudden have to pay $3000 to fix your car.
Correct answer:
C
Answer choice analysis:
A) There's no match for this in Jack's argument.
B) No match.
C) Decreases the risk = lessens the chance. Melinda was using "risk" to mean "money you'd pay out in the event of a calamity". Jack is using "risk" to mean "actual probability of that calamity occurring".
D) Decreases = lessens, but these consistently mean "to make lower".
E) Consistently used.
Takeaway/Pattern: This is an odd question. It involves a Flaw mindset, because we're evaluating why the 2nd person's response is faulty, but I've never seen another question like it, in which we're told in advance of the flaw and simply need to pick the equivocal word.
#officialexplanation