The correct answer is C. Palamu.
Garhwa district was formed on 12 April 1991 from the southern part of Palamu district. It is located in the south-eastern part of Jharkhand state, India. The district headquarters is Garhwa town.
The district is bounded by Latehar district to the north, Palamu district to the west, Chatra district to the south, and West Singhbhum district to the east. The Damodar River flows through the district.
The district has a population of 1,307,472 (2011 census). The majority of the population is Hindu, followed by Muslims and Christians. The main languages spoken in the district are Hindi, Magahi, and Santhali.
The district is divided into six blocks: Garhwa, Manika, Patratu, Ramgarh, Sadar, and Thakurganj. There are three municipalities in the district: Garhwa, Manika, and Patratu.
The district is mainly an agricultural area. The main crops grown are rice, wheat, maize, and pulses. The district is also home to a number of industries, including steel, cement, and power.
The district is well-connected by road and rail. The nearest airport is at Ranchi.