The correct answer is option 3, Narmada. The Narmada River is one of the major rivers in India, flowing westward into the Arabian Sea. It originates in the Amarkantak Plateau in the state of Madhya Pradesh and flows through the states of Madhya Pradesh, Maharashtra, and Gujarat before finally merging with the Arabian Sea. The Narmada river has a total length of about 1,312 kilometers and is known for its significant hydroelectric power potential.

Option 1, Godavari, is incorrect as it flows into the Bay of Bengal and not the Arabian Sea. The Godavari River is the second longest river in India and it flows through the states of Maharashtra, Telangana, Andhra Pradesh, and Odisha.

Option 2, Krishna, is also incorrect as it also flows into the Bay of Bengal. The Krishna River is another major river in India, originating in the Western Ghats of Maharashtra and flowing through the states of Karnataka and Andhra Pradesh.

Option 4, Yamuna, is incorrect as it is a tributary of the Ganges River and eventually merges with it in Allahabad, Uttar Pradesh. The Yamuna River flows through the states of Delhi, Haryana, and Uttar