Explanation:
The correct answer is option 'C', which is the Bay of Bengal. The river Kaveri branches off into several small channels before emptying into the Bay of Bengal.

The river Kaveri, also known as Cauvery, is one of the major rivers in India. It originates in the Western Ghats of Karnataka and flows through the states of Karnataka and Tamil Nadu before emptying into the Bay of Bengal. The river is approximately 800 kilometers long.

The river Kaveri forms several small channels or distributaries as it nears its mouth. These distributaries are created due to the presence of deltaic formations in the region. The delta region of the Kaveri river is known as the Kaveri Delta or the Cauvery Delta.

The Kaveri Delta is a fertile agricultural region and is known as the "Rice Bowl of Tamil Nadu." The distributaries of the Kaveri river in the delta region play a crucial role in irrigation and agriculture. The main distributaries of the Kaveri river in the delta region are the Vennar, Vettar, and Palar rivers.

These distributaries carry the water from the main river and distribute it across the delta region, ensuring the irrigation of the agricultural lands. The water from these distributaries eventually reaches the Bay of Bengal, which is located on the eastern coast of India.

The Bay of Bengal is a large body of water that lies between the eastern coast of India and the western coast of Myanmar (Burma). It is a part of the northeastern Indian Ocean and is known for its rich marine biodiversity.

In conclusion, the river Kaveri branches off into several small channels or distributaries before emptying into the Bay of Bengal. The distributaries play a crucial role in irrigation and agriculture in the fertile Kaveri Delta region.