The correct answer is A) Periyar.
The Periyar River is the longest river in Kerala, India. It originates in the Western Ghats and flows through the districts of Idukki, Ernakulam, Thrissur, and Palakkad. The river is a major source of water for irrigation, drinking water, and hydroelectric power. It is also a popular tourist destination, known for its waterfalls, forests, and wildlife.
The Bharathapuzha River is the second longest river in Kerala. It originates in the Western Ghats and flows through the districts of Palakkad, Thrissur, Malappuram, and Kozhikode. The river is a major source of water for irrigation, drinking water, and hydroelectric power. It is also a popular tourist destination, known for its temples, mosques, and churches.
The Pamba River is the third longest river in Kerala. It originates in the Western Ghats and flows through the districts of Pathanamthitta, Alappuzha, and Kottayam. The river is a major source of water for irrigation, drinking water, and hydroelectric power. It is also a popular tourist destination, known for its temples, mosques, and churches.
The Chaliyar River is the fourth longest river in Kerala. It originates in the Western Ghats and flows through the districts of Malappuram, Kozhikode, and Kannur. The river is a major source of water for irrigation, drinking water, and hydroelectric power. It is also a popular tourist destination, known for its waterfalls, forests, and wildlife.