The correct answer is: B. Tea Research Centre
Tocklai is a town in Assam, India. It is famous for the Tocklai Tea Research Institute, which is the oldest tea research institute in the world. The institute was established in 1839 by the British East India Company. It is a premier institute for research and development in tea science and technology. The institute has made significant contributions to the development of the tea industry in India and other countries.
The other options are incorrect. Jute is a fiber crop that is grown in tropical and subtropical regions. It is used to make a variety of products, including bags, ropes, and carpets. Rice is a cereal crop that is grown in many parts of the world. It is a staple food for millions of people.