The correct answer is Arrah.
Arrah was a major center for the revolt in Bihar because it was a major commercial and administrative center. It was also home to a large number of educated and politically active people. The rebels in Arrah were led by Kunwar Singh, who was a respected leader and a skilled military strategist. The rebels were able to capture Arrah and hold it for several months before they were defeated by the British.
Patna is the capital of Bihar and was also a major center for the revolt. However, the rebels in Patna were not as successful as the rebels in Arrah. The British were able to quickly suppress the revolt in Patna and capture the city.
Gaya is a city in Bihar that is known for its religious significance. It is home to a number of temples and shrines. The rebels in Gaya were not as active as the rebels in Arrah or Patna. The British were able to easily suppress the revolt in Gaya.
Muzaffarpur is a city in Bihar that is known for its agricultural production. It is home to a number of sugar mills. The rebels in Muzaffarpur were not as active as the rebels in Arrah or Patna. The British were able to easily suppress the revolt in Muzaffarpur.