The correct answer is British officials.
Muzaffarpur is a city in the Indian state of Bihar. It is the headquarters of Muzaffarpur district and the Muzaffarpur division. The city is located on the banks of the Gandak River, about 100 kilometers (62 mi) north of Patna, the state capital.
Muzaffarpur is a major center of education and commerce. The city is home to a number of universities, colleges, and schools. It is also a major industrial center, with a number of factories and manufacturing units.
The city is also associated with the Indian independence movement. In 1915, a group of revolutionaries assassinated British officials in Muzaffarpur. The assassinations were part of a larger movement to overthrow British rule in India.
The other options are incorrect. Zamindars were landlords in India under the British Raj. Moneylenders were people who lent money at high interest rates. Nawabs were Muslim rulers in India.