To answer this, we must rank the states by population density as per the Census of India, 2011. Population density is measured as individuals per square kilometer.
| State | Population Density (people/km²) |
|---|---|
| West Bengal | 1029 |
| Uttar Pradesh | 828 |
| Kerala | 859 |
| Tamil Nadu | 555 |
The population densities are as follows:
Therefore, the correct sequence is: (A), (C), (B), (D)