IMO it's D.
If most mail arrives within 3+ days, and most correctly addressed mail arrives within 2 days, then most mail is cannot be correctly addressed. This means, D - a large proportion of mail is incorrectly addressed.
B tries to claim that a lot of the correctly addressed mail is damaged. However, this is not possible as we know most correctly addressed mail arrives in 2 days, which means it is not damaged.
As for C, it plays on the first line in the argument, but reverses it. Notice that the fact most A is B does not automatically mean most B is A. So the fact most correctly addressed mail arrive within 2 days, doesn't mean most mail arriving within 2 days is correctly addressed. There could be a large amount of 'lucky' incorrectly-addressed mail which also arrives within two days. This does not contradict the fact most (but not all) mail takes longer than 3 days - for example:
10% correctly-addressed mail arriving within 2 days
14% 'lucky' incorrectly-addressed mail arriving within 2 days
1% damaged correctly-addressed mail arriving within 2+ days
75% incorrectly-addressed mail arriving withing 3+ days
In this example, most mail arriving in 2 days is incorrectly-addressed, eliminating C.
BREAKING: Target Test Prep releases Brand New 2026 On Demand GMAT prep course
Redeem
Featured Course
Target Test Prep GMAT OnDemand
Scott Woodbury-Stewart’s private virtual classroom — 400 hours of master-class video lessons for the GMAT Focus Edition.
- 715+ score guarantee — highest in the industry (99th percentile)
- 52 chapters · 1,500+ lessons · 4,000+ practice questions
- 400 hours of video · 1,500+ instructor-led HD smartboard lessons
- 300,000+ students accepted to Harvard, Stanford, Wharton, Booth & Sloan & more
- 24/7 live support + weekly Zoom office hours with GMAT instructors
- TTP AI Assist — 24/7 AI-powered virtual tutor for instant help
- 1,200+ flashcards + AI-powered study assistant & daily calendar
- OnDemand, LiveTeach & GMAT Bootcamp formats available
- Also: GRE, SAT Math & Executive Assessment courses
- MBA Admissions Consulting now available
- 🏆 2025 EdTech Breakthrough Award: Test Prep Solution Provider of the Year
- 200,000+ students served
- 5-day free trial — $0 to start, no auto-billing, cancel anytime
★★★★★
5.0
(559 reviews)
130-pt guarantee
$0 to start
then $127/mo
