Q1 - Scientists agree that ingesting lead harms

[ohthatpatrick]

What does the Question Stem tell us?
Explain Discrepancy

Break down the Stimulus:

Given that "ingesting lead is harmful to kids" and that "older apt. buildings have more lead paint than newer ones"
Why is it that experts say "removing lead paint from older apt. buildings will increase the lead that kids ingest?"

Any prephrase?
We need a reason why removing lead paint from old apt. buildings would INCREASE the lead that kids are ingesting.

Correct answer:
D

Answer choice analysis:
A) No one cares about lead-free paints. They can't be a way of increasing the amount of LEAD that kids ingest.

B) We don't care about money. Just why removing lead would increase ingested lead.

C) It doesn't matter if there are OTHER sources of lead. We still don't have a way to explain why REMOVING lead from old buildings would INCREASE the lead ingested.

D) This works. This explains how REMOVING lead could lead to INCREASED lead ingested.

E) We only care about lead.

Takeaway/Pattern: On most Resolve/Explain questions, one fact functions as the background fact and the other (normally prefaced by "but/yet/however/nevertheless") is the surprise that we need to explain. If you have a tight prephrase here of "How could REMOVING lead from a building INCREASE the amount of lead ingested?", then the only relevant answer choice is (D), since it's the only one that speaks to the effect of removal on lead ingestion.

#officialexplanation

[lolitatrekkie]

Why is answer choice D correct and not C? Is C wrong because it doesn't resolve the conflict between the removal of lead paint from old apartments and old apartments that don't have the lead paint removed?

Thanks!