please suggest me what to do regarding optional??

1... political science or mass communication
(studied political science at graduate level, while failed in journalism in CSS-2014)


2...... Psychology or sociology or social work??
(passed psychology in CSS-2014 with average marks more than 50%... no idea of sociology or social work...but most people are opting them seems easy subjects...please suggest)


3.. Punjabi....or Public Ad
(passed punjabi in CSS-2014 ..... however going to get admission in MPA (Public Administration) in upcoming semester).....

please guide.... Jazak Allah