Answer: (Detailed Solution Below)
Option A: 1, 4, 2, 3
Detailed Solution:
The correct answer is “1, 4, 2, 3”.
States in respect of density of population (2011 Census): Bihar > West Bengal > Kerala > UP > Haryana
States/UTs in respect of density of population (2011 Census): NCT of Delhi > Chandigarh > Puducherry > Lakshadweep > Bihar