A popular cattle breed found in the coastal regions of Karnataka:

Malnad Gidda
Sahiwal
Tharparkar
Kankrej

The correct answer is A) Malnad Gidda.

Malnad Gidda is a popular cattle breed found in the coastal regions of Karnataka. It is a small, sturdy breed that is well-adapted to the hot and humid climate of the region. Malnad Gidda is known for its milk production and its ability to thrive on poor quality fodder.

Sahiwal is a cattle breed found in the Punjab region of Pakistan. It is a large, well-muscled breed that is known for its milk production. Sahiwal is also a popular draught animal.

Tharparkar is a cattle breed found in the Thar Desert of India and Pakistan. It is a hardy breed that is well-adapted to the arid climate of the desert. Tharparkar is known for its milk production and its ability to thrive on poor quality fodder.

Kankrej is a cattle breed found in the Kutch region of Gujarat, India. It is a large, well-muscled breed that is known for its milk production and its ability to thrive on poor quality fodder.

Malnad Gidda is the most popular cattle breed found in the coastal regions of Karnataka. It is a small, sturdy breed that is well-adapted to the hot and humid climate of the region. Malnad Gidda is known for its milk production and its ability to thrive on poor quality fodder.