The correct answer is: a) Coastal Andhra
Coastal Andhra is the region of Andhra Pradesh that lies along the Bay of Bengal. It is the most populous and agriculturally productive region of the state. The climate in Coastal Andhra is tropical, with hot and humid summers and mild winters. The region is home to a number of rivers, including the Godavari, Krishna, and Pennar.
Buffalo rearing is a major agricultural activity in Coastal Andhra. Buffaloes are used for milk production, draught power, and meat. The region has a high concentration of buffaloes, due to the favorable climate and the availability of fodder.
The other options are incorrect because:
- Rayalaseema is a region of Andhra Pradesh that lies inland, away from the coast. It is a dry and hilly region, with a semi-arid climate. The region is not well-suited for buffalo rearing.
- Uttarandhra is a region of Andhra Pradesh that lies north of the Godavari River. It is a hilly region, with a tropical climate. The region is not well-suited for buffalo rearing.
- Telangana border region is a region that lies along the border between Andhra Pradesh and Telangana. It is a hilly region, with a tropical climate. The region is not well-suited for buffalo rearing.