Which degree should i choose if my one and only priority is highest possible earning?

I'm a student of 12th grade with science major. I'm confident that i can shift to any subject if i work hard. There is also another problem that i am from Dhaka, Bangladesh and if I stay in this country, I won't have a feasible path towards my goal and I don't have that much amount of capital to do a startup or staffs like that. So, I'm looking forward to having abroad scholarships. And I'm confused about choosing a major after my 12th grade. Like, Computer Science, Business Administration, Electric and Electronic engineering etc. I'm mainly confused between these three. Noteworthy, I don't like medicine and I don't wanna study law. I know I can reach my goal through successful entrepreneurship. But, for that I need capital which i can get only through my own career earning cause I don't have that family background. So, among those 3 degrees mainly, which one should i go for if i want the highest possible income? consider that I'm equally good in all these and I equally prefer all these. If you want, you can suggest me about any kind of degree or job other than medicine and law. Now give me a suggestion.