hello aspirant,

Psychology optional, which is favoured as an optional subject for WBCS Mains examination is because it is a simple subject, it is a safe subject, and is considered a scoring subject

Sociology has turned out as a vital part of General Studies paper and as optional paper in Civil Services Mains Examination. it is one of the easiest optional subjects  if compared to other subjects.

Public administration is a popular optional ,the subject have a large number of takers .

although, PSYCHOLOGY IS CONSIDERED TO BE THE EASIEST AND THE MOST SCORING SUBJECT.