The correct answer is A. 13.9%.
According to the 2011 census, the percentage of urban population in Assam is 13.9%. This means that out of the total population of Assam, 13.9% live in urban areas. This is lower than the national average of 31.1%.
There are a number of reasons for the low percentage of urban population in Assam. One reason is that the state has a large rural population. The majority of people in Assam live in villages and small towns. Another reason is that the state has a relatively low level of economic development. This means that there are fewer jobs available in urban areas, and people are less likely to move to cities.
The low percentage of urban population in Assam has a number of implications. One implication is that the state has a lower level of infrastructure development. This means that there are fewer roads, schools, hospitals, and other facilities in urban areas. Another implication is that the state has a lower level of social development. This means that there are fewer opportunities for education, employment, and healthcare in urban areas.
The low percentage of urban population in Assam is a challenge for the state government. The government needs to invest in infrastructure development and social development in urban areas. This will help to attract more people to live in cities and improve the quality of life for those who already live there.