The correct answer is C. Mature writing uses a broader vocabulary and more descriptive phrases.
Step-by-step explanation:
In writing, maturity refers to the quality of texts that is closely related to the expertise of a writer. In this way, immature writing is shown by the lack of coherence or development of ideas, the use of simple vocabulary and structure and lack of connection between elements in the text. On the other hand, in mature writing, the writer is able to use complex structures, connect all elements and use broader and in most cases more specific vocabulary that helps the writer to express ideas better or describe a situation, person, etc. more detailed. According to this, the difference between mature and immature writing is that "mature writing uses a broader vocabulary and more descriptive phrases".