The correct answer is C) Bengaluru.
Bengaluru is the capital of Karnataka and the third most populous city in India. It is a major financial, technology, and manufacturing center. The city is home to many multinational corporations, including Infosys, Wipro, and Tata Consultancy Services. Bengaluru is also a major tourist destination, known for its parks, gardens, and temples.
Mysuru is the second-largest city in Karnataka and is known for its palaces, temples, and gardens. It is also a major center for education and culture.
Mangaluru is a port city on the Arabian Sea coast of Karnataka. It is a major commercial center and is known for its beaches, churches, and mosques.
Hubli-Dharwad is a twin city in the northern part of Karnataka. It is a major commercial and industrial center.
In conclusion, Bengaluru is the commercial hub of Karnataka, renowned for its businesses and trading activities.