The ‘land of sandalwood’, referring to a major Karnataka industry, is:

The correct answer is: B) Malnad region.

The Malnad region is a hilly region in the Western Ghats of Karnataka, India. It is known for its dense forests, coffee plantations, and sandalwood trees. The Malnad region is a major producer of sandalwood, which is a valuable wood used in incense, perfumes, and other products.

The other options are incorrect because:

• Mysuru region is a region in the southern part of Karnataka. It is known for its historical sites, such as the Mysuru Palace and the Chamundi Hills.
• Coastal Karnataka is a region in the western part of Karnataka. It is known for its beaches, temples, and wildlife sanctuaries.
• North Karnataka is a region in the northern part of Karnataka. It is known for its agriculture, industries, and temples.