What is the reason behind more number of "Regular salaried employees" in urban areas?

All of the above

In rural areas, majority of those depending on farming own plots of land and cultivate independently. Thus, the share of self-employed worker is more. Whereas, the nature of work in urban areas is different, obviously everyone cannot run factories, shops and offices of various types. Moreover enterprises in urban areas require workers on a regular basis, making the proportion of regular salaried employee in urban areas more.