The correct answer is option 3, India. India is a major producer of sugar. While Australia, Cuba, and Mauritius are also known for their sugar production, India holds the top position globally. India has a favorable climate and ample land suitable for sugarcane cultivation, making it a lucrative industry in the country. With a large population and high demand for sugar, India has a strong domestic market as well as for export. India`s sugar industry contributes significantly to its economy, providing employment opportunities and revenue generation. Therefore, option 3, India, is the correct answer.