confused in choosing elective subject cs professional

CS profession is more related to Capital,Comodity and Money market.

i think go for "Intellectual property laws" Reason is: Its very easy to understand its concepts for example Patents, copyright of a book etc. all are day to day concepts. there will not be any difficulty to understand what is copy right, you can understand it easily.

i agree that banking law or capital markets are related to cs but your first aim is to pass the exam, select a subject which is easy to understand. So my suggestion for you is to go for intellectual property laws.