The most important commercial tree species in Karnataka:

Teakwood
Rosewood
Sandalwood
Pine

The correct answer is: C) Sandalwood.

Sandalwood is a small, slow-growing tree that is native to India, Sri Lanka, and Southeast Asia. It is prized for its fragrant wood, which is used in a variety of products, including incense, perfumes, and cosmetics. Sandalwood is also used in traditional Indian medicine.

Teakwood is a hardwood that is native to tropical and subtropical regions of Asia. It is a strong and durable wood that is resistant to decay and insect damage. Teakwood is used in a variety of applications, including furniture, flooring, and boat building.

Rosewood is a hardwood that is native to tropical regions of Central and South America. It is a beautiful and fragrant wood that is used in a variety of applications, including furniture, flooring, and musical instruments.

Pine is a coniferous tree that is native to the Northern Hemisphere. It is a fast-growing tree that is used in a variety of applications, including lumber, paper, and turpentine.

Sandalwood is the most important commercial tree species in Karnataka because of its high value and demand. It is a valuable commodity that is used in a variety of products. Sandalwood is also a symbol of wealth and status in India.