The correct answer is A. Cauvery.
Tiruchirappalli is a city in the Indian state of Tamil Nadu. It is located on the banks of the Cauvery River, about 300 kilometers from Chennai. The city is a major commercial and industrial center, and is also home to a number of educational institutions.
The Cauvery River is the longest river in the state of Tamil Nadu. It originates in the Western Ghats and flows through the states of Karnataka, Kerala, and Tamil Nadu. The river is a major source of irrigation and drinking water for millions of people in the region.
The Tapti River is a river in central India. It originates in the Satpura Range and flows through the states of Madhya Pradesh, Maharashtra, and Gujarat. The river is a major source of irrigation and drinking water for millions of people in the region.
The Krishna River is a river in southern India. It originates in the Western Ghats and flows through the states of Karnataka, Andhra Pradesh, and Telangana. The river is a major source of irrigation and drinking water for millions of people in the region.
The Ganga River is a river in northern India. It originates in the Himalayas and flows through the states of Uttarakhand, Uttar Pradesh, Bihar, Jharkhand, and West Bengal. The river is a major source of irrigation and drinking water for millions of people in the region.