- AThe plant will close soon
- BParticulates are no longer produced
- CThe filters are inexpensive
- DDuct cleaning was previously required at least weekly
Show answer and rationale
Correct: D. 'No longer needs weekly duct cleaning' implies that weekly cleaning was previously required. Cost, closure and production levels are not addressed.
- C — Price is never mentioned.
- A — Nothing suggests closure.
- B — 99% removal means particulates are still produced, just captured.