The correct answer is: c) 550
Punjab is a state in northwestern India. It has a population of over 28 million people and a land area of 50,362 square kilometers. This gives it a population density of approximately 550 people per square kilometer.
Option a) is incorrect because the population density of Punjab is much higher than 100 people per square kilometer.
Option b) is incorrect because the population density of Punjab is much higher than 250 people per square kilometer.
Option d) is incorrect because the population density of Punjab is much lower than 800 people per square kilometer.