Correct option is A
The correct answer is : (a) Son River
· The Rohtas Fort, also known as Rohtasgarh Fort, is located on the Kaimur Hills in the Son River valley in the Rohtas district of Bihar.
· It was constructed as a strategic fortification and has been historically significant since the reign of Sher Shah Suri, who is credited with strengthening it.
· The fort overlooks the Son River, providing it with a natural defense and a source of water.
Why not the other options?
Ganga River
· The Ganga is the most prominent river in Bihar, but the Rohtas Fort is not located in the Ganga River valley.
· The fort is situated further south in the Son River valley, which is a tributary of the Ganga.
Karmanasa River
· The Karmanasa River is a tributary of the Ganga River, flowing through Uttar Pradesh and Bihar.
Ghaghar River
· The Ghaghar River, also called the Ghaggar-Hakra, flows through Haryana, Punjab, and parts of Rajasthan.
· The Rohtas Fort, also known as Rohtasgarh Fort, is located on the Kaimur Hills in the Son River valley in the Rohtas district of Bihar.
· It was constructed as a strategic fortification and has been historically significant since the reign of Sher Shah Suri, who is credited with strengthening it.
· The fort overlooks the Son River, providing it with a natural defense and a source of water.
Why not the other options?
Ganga River
· The Ganga is the most prominent river in Bihar, but the Rohtas Fort is not located in the Ganga River valley.
· The fort is situated further south in the Son River valley, which is a tributary of the Ganga.
Karmanasa River
· The Karmanasa River is a tributary of the Ganga River, flowing through Uttar Pradesh and Bihar.
Ghaghar River
· The Ghaghar River, also called the Ghaggar-Hakra, flows through Haryana, Punjab, and parts of Rajasthan.
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