The correct answer is A. Latehar.
Latehar is a district in Jharkhand, India. It is one of the most backward districts in the state. The district is going through a violent turmoil due to the presence of Maoist and Communist. The Maoists have been active in the district for over a decade and have carried out a number of attacks on security forces and civilians. The government has launched a number of operations to flush out the Maoists, but they have been largely unsuccessful. The violence in the district has had a devastating impact on the lives of the people. Many people have been killed or injured in the attacks, and thousands have been displaced from their homes. The economy of the district has also been severely affected.
The other options are incorrect. Ranchi is the capital of Jharkhand and is a relatively peaceful city. Bokaro is a steel city and is also a relatively peaceful city. Chatra is a district in Jharkhand that is also going through a violent turmoil due to the presence of Maoist and Communist, but it is not as affected as Latehar.