The correct answer is A. Jamui.
Jamui is a district in the Indian state of Bihar. It is located in the south-western part of the state and is bordered by the districts of Munger, Lakhisarai, Sheikhpura, and Banka. The district has a population of over 1.5 million people and its headquarters is the town of Jamui.
The climate of Jamui is tropical. The average temperature ranges from 20°C to 35°C. The monsoon season is from June to September and receives an average rainfall of 1,000 mm. The winter season is from December to February and is relatively dry.
The main occupation of the people of Jamui is agriculture. The main crops grown are rice, wheat, maize, and pulses. The district is also home to a number of industries, including sugar mills, paper mills, and cement factories.
Jamui is a beautiful district with a rich history and culture. The district is home to a number of temples, mosques, and other historical monuments. The people of Jamui are friendly and welcoming.
The other options are incorrect because they receive more rainfall than Jamui. Saran receives an average rainfall of 1,200 mm, Aurangabad receives an average rainfall of 1,300 mm, and Gaya receives an average rainfall of 1,400 mm.