The correct answer is: A) Coastal Karnataka.
The coastal region of Karnataka is located on the Arabian Sea coast and is characterized by a tropical climate. The average temperature in the coastal region ranges from 25°C to 30°C, with high humidity levels. The coastal region receives an average annual rainfall of 3,000 mm, which is mostly concentrated during the monsoon season (June-September).
The Deccan Plateau region is located in the central and northern parts of Karnataka and is characterized by a semi-arid climate. The average temperature in the Deccan Plateau region ranges from 20°C to 35°C, with low humidity levels. The Deccan Plateau region receives an average annual rainfall of 750 mm, which is mostly concentrated during the monsoon season (June-September).
North Karnataka is located in the northern part of Karnataka and is characterized by a dry climate. The average temperature in North Karnataka ranges from 20°C to 40°C, with low humidity levels. North Karnataka receives an average annual rainfall of 500 mm, which is mostly concentrated during the monsoon season (June-September).
South Karnataka is located in the southern part of Karnataka and is characterized by a tropical climate. The average temperature in South Karnataka ranges from 25°C to 35°C, with high humidity levels. South Karnataka receives an average annual rainfall of 3,000 mm, which is mostly concentrated during the monsoon season (June-September).