Answer:
(a) They take a personal stake in the success or failure of the business.
Explanation:
Entrepreneurs are some of the most multiverse, multi -talented and diverse people. They try to perform different roles at same time like they are the project managers, a risk taker, an accountant, a marketer and a salesman etc.
Entrepreneurs play a key role in any economy. These are those that have the talents and initiative necessary to anticipate current and future desires and produce sensible new concepts to the market.
They carefully analyze market conditions and also they take a personal stake in the success or failure of the business.
So, option (a) is correctly fitted.