The correct answer is (b).
According to the 2011 census, the percentage of the population living in urban areas in Andhra Pradesh is 35.6%. This means that about 36 out of every 100 people in Andhra Pradesh live in urban areas.
The other options are incorrect because they do not represent the actual percentage of the population living in urban areas in Andhra Pradesh.
Option (a) is incorrect because it states that the percentage of the population living in urban areas in Andhra Pradesh is less than 20%. However, the actual percentage is 35.6%, which is more than 20%.
Option (c) is incorrect because it states that the percentage of the population living in urban areas in Andhra Pradesh is 40%-60%. However, the actual percentage is 35.6%, which is less than 60%.
Option (d) is incorrect because it states that the percentage of the population living in urban areas in Andhra Pradesh is more than 60%. However, the actual percentage is 35.6%, which is less than 60%.