Best O level tuition center in Lahore

What subjects should I take for O level? I am studying in Choueifat and they are offering L and S. I want to go to L, but my parents are forcing me to go to sciences. I talked to CEO of PACANS who is also a Chouefatian and he advised me to go to L and my Economics and Business Studies are very good. He is a very good person and his name is Mr. Umar Khan.