According to India`s Report of 2001, the percentage of the population living in rural areas is 72%. This means that out of the total population of India at that time, 72% of people were living in rural areas.
Option 1 states that the percentage is 70%, which is not the correct answer.
Option 3 states that the percentage is 74%, which is also not the correct answer.
Option 4 states that the percentage is 80%, which is higher than the correct answer.
Therefore, the correct answer is option 2, which states that the percentage of the population living in rural areas is 72%.