Answer: Option (B). Profit motive
Explanation: The main reason Murphy and other entrepreneurs would decide to start their own business is for the sole aim of making profits. There are several reasons why entrepreneurs are willing to take a calculated risk and set up a business, is because owners keep the profit as a reward for risk-taking and enterprise.
Murphy and other entrepreneurs would likely start a business because of its income potential, When you start your own business, you have the opportunity to earn an unlimited income based on your own efforts and the success or failure of the business.