A major manufacturing hub for the automobile industry in Karnataka:

Mysuru
Bengaluru
Mangaluru
Hubli-Dharwad

The correct answer is: B) Bengaluru.

Bengaluru is the capital of Karnataka and the third most populous city in India. It is a major manufacturing hub for the automobile industry, with companies such as Maruti Suzuki, Hyundai, and Toyota having manufacturing plants in the city. Bengaluru is also home to a number of engineering and technology colleges, which provide a skilled workforce for the automobile industry.

Mysuru is the second largest city in Karnataka and is known for its historical and cultural heritage. It is not a major manufacturing hub for the automobile industry.

Mangaluru is a port city on the west coast of India. It is a major commercial and trading center, but is not a major manufacturing hub for the automobile industry.

Hubli-Dharwad is a twin city in the northern part of Karnataka. It is a major commercial and educational center, but is not a major manufacturing hub for the automobile industry.