Answer:
A) Access to the firm's profits and gains are open only to those who take on the business risk of the firm.
Explanation:
This is essentially true for both profits and losses, only the owners of a private business will benefit or lose when the business makes a profit or loses money. In other words, if I invest, I assume the risks of my investment and the profit or loss from that investment affects me.
The same happens when you buy a car, only you can use it or decide who uses it. But if a stranger comes and takes your car it is a crime.