The correct answer is: Tea.
Tea is the most important agricultural product in Manipur. It is grown in the hills of the state and is exported to other parts of India and the world. Tea is a major source of income for the people of Manipur.
Rice is also an important agricultural product in Manipur. It is grown in the valleys of the state and is a staple food for the people of Manipur. Rice is also exported to other parts of India.
Pineapple is not a major agricultural product in Manipur. It is grown in some parts of the state, but it is not a major source of income for the people of Manipur. Pineapple is not exported to other parts of India or the world.
Jute is not a major agricultural product in Manipur. It is grown in some parts of the state, but it is not a major source of income for the people of Manipur. Jute is not exported to other parts of India or the world.