The correct answer is (a) Madhya Pradesh.
Teak is a tropical hardwood tree that is native to India, Southeast Asia, and China. It is a valuable timber tree that is used to make furniture, flooring, and other wood products. Teak forests are found in the tropical and subtropical regions of India, and Madhya Pradesh is one of the states where teak forests are found.
The other options are incorrect because:
(b) Uttar Pradesh is a state in northern India. It is not a major producer of teak.
(c) Jharkhand is a state in eastern India. It is not a major producer of teak.
(d) Karnataka is a state in southern India. It is a major producer of teak, but not as much as Madhya Pradesh.