Guidebook writer:
1) I have visited hotels throughout the country and have noticed that in those built before 1930, quality of original carpentry work is superior to that in hotels built afterword
2) Clearly, carpenters working on 1930 worked with more skill, care, and effort than carpenters who have worked on hotels built later.
Which of the following,if true, most seriously weakens the guidebook writer’s argument?
A. The quality of original carpentry in hotels is generally far superior to the quality of original carpentry in other structures, such as houses and stores.
- out of scope
B. Hotels built since 1930 can generally accommodate more guests than those built before 1930.
- out of scope
C. The materials available to carpenters working before 1930 were not significantly different in quality from the materials available
to carpenters working after 1930.
- in that case, it supports the conclusion
D. The better the quality of original carpentry in a building, the less likely that building is to fall into disuse and be demolished.
- out of scope
E. The average length of apprenticeship for carpenters has declined significantly since 1930.
- Sounds like the best choice among the 5. If average lenght of apprenticeship declined significantly since 1930, then it might be a case of lower-skilled carpenters after 1930, which results in lower quality of work.
I'll take E.