What is the best "double degree" in combination with Business, in terms of career progression?

business and IT

• Option B bussiness and enginering back ground would make the best OPS manager.
• He would know about the technicalities of the productin process.
• Would also have knowledge about costing, advertising, sales and other factors which an engineer would not know about.

Business and Economy. If you learn economies of your market and product then you have an edge in business.

Entrepreneurship , this help you to understand and deal the business as an owner 

b.bussiness and enginering  

Engineering Management is a very close discipline which overlaps significantly with Business Engineering; the main differences are that Industrial Engineering focuses primarily on the goods sector (less on services), on technical systems and the interface between those systems as well as the users from a production point of view.

other,,, MBA & PHARMACY