English Language · Sentence Completion

In the question given below, a part of a sentence is given followed by three clauses. Choose the option containing the clause(s) that complete the sentence in a grammatically and contextually correct manner. The Amazon rainforest is one of the most vital carbon sinks on Earth, ... I. industrial expansion and deforestation have begun to compromise its health. II. and also regulates the global climate by absorbing vast amounts of carbon. III. teeming with biological diversity, and with rare animals, ancient rivers and thick canopies.