The correct answer is: A) Mangalore.
The Central Marine Fisheries Research Institute (CMFRI) is an autonomous research institute under the Ministry of Agriculture and Farmers Welfare, Government of India. It is headquartered in Kochi, Kerala. The CMFRI has a regional center in Mangalore, Karnataka. The regional center was established in 1966. It is located at the Old Port Trust Building, Hampankatta, Mangalore. The regional center undertakes research on various aspects of marine fisheries, including fish biology, fisheries technology, aquaculture, and marine pollution. It also provides training and extension services to fishermen and fish farmers.
The other options are incorrect because:
- Karwar is a city in Uttara Kannada district of Karnataka. It is located on the banks of the Kali River. Karwar is a major port city and a popular tourist destination.
- Udupi is a city in Udupi district of Karnataka. It is located on the banks of the Sharavati River. Udupi is a major religious and educational center.
- Honnavar is a town in Uttara Kannada district of Karnataka. It is located on the banks of the Sharavati River. Honnavar is a major port town and a popular tourist destination.