Answer-Below are three sentences (A), (B), and (C). One or more of them may contain a grammatical or usage...

Sentence A is correct. It is a grammatically clear imperative sentence giving an orderinstruction starting with a base verb Inspect.... Sentence B contains an error. The conjunctions Although and but both show contrast and cannot be used together in the same clause structure. Remove but Although the conference addressed..., it failed.... Sentence C is correct. When reporting a universal truth or scientific fact, the present simple tense thaws, rise is retained even if the main reporting verb is in the past tense explained.

Question

Below are three sentences (

A , (
B , and (
C . One or more of them may contain a grammatical or usage error. Choose the option that identifies which sentence(s) are error-free. Ignore punctuation errors, if any. A. Inspect the local manufacturing plant carefully to ensure that safety standards are fully met before issuing the permit. B. Although the international conference addressed critical global security issues, but it failed to establish a clear timeline for implementation. C. The lead scientist explained that ancient permafrost thaws rapidly when atmospheric temperatures rise beyond critical environmental thresholds.