A major commercial center in Manipur is:

Churachandpur
Jiribam
Moreh
Mao

The correct answer is Moreh.

Moreh is a town in Manipur, India. It is located on the Indo-Myanmar border and is the largest town in the Chandel district. Moreh is a major commercial center and is known for its trade with Myanmar. The town is also home to a number of educational institutions, including the Moreh College.

Churachandpur is a town in Manipur, India. It is the headquarters of the Churachandpur district. Churachandpur is a major commercial center and is known for its handicrafts. The town is also home to a number of educational institutions, including the Churachandpur College.

Jiribam is a town in Manipur, India. It is the headquarters of the Jiribam district. Jiribam is a major commercial center and is known for its silk production. The town is also home to a number of educational institutions, including the Jiribam College.

Mao is a town in Manipur, India. It is the headquarters of the Mao district. Mao is a major commercial center and is known for its oranges. The town is also home to a number of educational institutions, including the Mao College.