hi,

become a ceo in any company needs a good professional career with relevant discipline,you should have relevant years of work experience, educational qualification etc. so rather than thinking about becoming a ceo you should think about which area you want to do your graduation course, after 12th commerce students has following career paths,

Bachelors of Commerce (B.Com)

Bachelors in Economics

Bachelors of Business Administration (BBA)

Bachelor of Management Studies (BMS)

Chartered Accountancy (CA)

Company Secretary (CS)

Cost and Management Accountant (CMA)

if you do any of the above course with dedication and hard work you can certainly get job in mncs in relevant position.