The correct answer is: d) Thoubal.
Thoubal is a city in the Imphal Valley division of Manipur, India. It is the headquarters of Thoubal district and is located about 15 kilometers from Imphal, the state capital. The city has a population of over 100,000 people and is a major commercial and educational center in the state.
Ukhrul, Tamenglong, and Churachandpur are all located in the hill districts of Manipur. These districts are more rural and less developed than the Imphal Valley.
Ukhrul is the headquarters of Ukhrul district and is located about 100 kilometers from Imphal. The district has a population of over 200,000 people and is home to a number of ethnic groups, including the Tangkhul Nagas.
Tamenglong is the headquarters of Tamenglong district and is located about 150 kilometers from Imphal. The district has a population of over 100,000 people and is home to a number of ethnic groups, including the Zeme Nagas.
Churachandpur is the headquarters of Churachandpur district and is located about 120 kilometers from Imphal. The district has a population of over 300,000 people and is home to a number of ethnic groups, including the Kuki Nagas.