AoA everyone.
My name is Saad, I am hoping to appear in CSS 2017. While going through the list of optional subjects opted for by toppers posted in this forum, I noticed that only two have opted for more common and conventional science subjects like maths(applied or pure), physics or chemistry(none!)

I wanted to ask what you might think the reason for this is. Maybe they have different background(arts or political science, law etc), maybe these subjects have larger syllabus as compared to their potential for scoring, maybe some other factor.

This concerns me because as an Electrical Engineer from NUST(to graduate in June) I was thinking of choosing Maths(either), Physics and Islamic History & Culture.

Thank you, I am looking forward to your replies.