The most likely incentive for entrepreneurs to start a new business is a) to make a profit. b) to discover a new patent. c) to risk financial failure. d) to create a new social benefit.

A)to make a profit.
An Entrepreneur is a visionary who enters into a financial risk in order to profit.benefit from it.  They usually start out with a unique idea/product, patent it, and open a business selling it for profit.