i opted philosophy, indo pak,journalism, sociology, Persian,geography,Punjabi, international law.....these were my optionals in my 3 attempts....
i can help you with these subjects...
plus i would suggest you to focus on essay n precise because even if you score 700 you cannot get allocation if you are fail in English......
if you live in Lahore , join a good teacher...
Additionally, do not waste your time on extensive notes....css is a combination of hard work and smart work.....