Choose the sentence with correct use of a relative pronoun? The study that aims to improve health, were conducted in multiple cities.

The study that aims to improve health, were conducted in multiple cities.

The manuscript, which was reviewed thoroughly, were published last month.

The journal, which is renowned for its impact factor, accepts papers from various disciplines.

None of these

The sentence uses the relative pronoun "which" correctly to introduce the dependent clause.

The clause "which is renowned for its impact factor" describes the noun "journal".

The main clause "The journal accepts papers from various disciplines" is complete and correctly structured.