The correct answer is: c) Chandel.
Chandel district has the lowest population density in Manipur. It is located in the south-eastern part of the state and has a population of 178,662 people as of 2011. The district has a land area of 3,100 square kilometers, giving it a population density of 5.7 people per square kilometer.
The other options are:
- a) Senapati. Senapati district has a population of 327,405 people and a land area of 3,300 square kilometers, giving it a population density of 10.1 people per square kilometer.
- b) Tamenglong. Tamenglong district has a population of 224,955 people and a land area of 3,200 square kilometers, giving it a population density of 7.0 people per square kilometer.
- d) Ukhrul. Ukhrul district has a population of 207,478 people and a land area of 3,100 square kilometers, giving it a population density of 6.6 people per square kilometer.
The population density of a district is calculated by dividing the population of the district by the land area of the district. The population density of Chandel district is the lowest of the four districts because it has the lowest population and the largest land area.