The correct answer is option 1, Ganga. The Ganga River is the primary waterway used for inland transportation in India. It is one of the longest rivers in India and plays a crucial role in the country`s transportation system. The river runs through several states, including Uttarakhand, Uttar Pradesh, Bihar, and West Bengal, and has a well-developed network of navigable channels. It is navigable for large cargo ships and smaller vessels, allowing for the transportation of goods and passengers across various regions. The Ganga River serves as a vital trade route and contributes significantly to the transportation infrastructure of India.