The correct answer is: Option D. Giridih.
Garga Dam is a concrete gravity dam on the Garga River in Giridih district of Jharkhand, India. It is located about 100 km from Ranchi, the capital of Jharkhand. The dam was constructed between 1972 and 1984 for the purpose of irrigation, drinking water supply, and flood control. It has a gross storage capacity of 1,300 million cubic meters (46 billion cubic feet) and a live storage capacity of 900 million cubic meters (32 billion cubic feet). The dam is 105 meters (344 feet) high and 4,200 meters (13,800 feet) long. It has a power generation capacity of 100 MW.
The Garga Dam is a major tourist attraction in Jharkhand. The dam provides a scenic view of the surrounding hills and forests. The dam is also a popular spot for fishing and boating.
The other options are incorrect because:
- Option A, Dhanbad, is a city in Jharkhand. It is not the location of Garga Dam.
- Option B, Ramgarh, is a district in Jharkhand. It is not the location of Garga Dam.
- Option C, Bokaro, is a city in Jharkhand. It is not the location of Garga Dam.