Which of these cities in Bihar is a major trading hub for agricultural products?

Patna
Muzaffarpur
Gaya
Bhagalpur

The correct answer is Muzaffarpur.

Muzaffarpur is a city in the Indian state of Bihar. It is the headquarters of Muzaffarpur district and the largest city in the Mithila region. Muzaffarpur is a major trading hub for agricultural products, including rice, wheat, sugarcane, and vegetables. The city is also home to a number of industries, including textiles, sugar mills, and engineering firms.

Patna is the capital of Bihar and the second-largest city in the state. It is a major educational and cultural center. Patna is also a major transportation hub, with an airport and a railway station. The city is home to a number of industries, including steel, pharmaceuticals, and engineering.

Gaya is a city in the Indian state of Bihar. It is the headquarters of Gaya district and the third-largest city in the state. Gaya is a major pilgrimage site for Hindus and Buddhists. The city is also home to a number of educational institutions, including the University of Gaya.

Bhagalpur is a city in the Indian state of Bihar. It is the headquarters of Bhagalpur district and the fourth-largest city in the state. Bhagalpur is a major industrial center, with a number of textile mills and engineering firms. The city is also home to a number of educational institutions, including the University of Bhagalpur.