Which of the following is an example of an incentive? A. The U.S. has a current unemployment rate of 7.5 percent. B. All conference volunteers would be offered free lunch on all three days. C. China is facing increasing labor costs. D. The Reserve Bank of India has raised interest rates.

B. All conference volunteers would be offered free lunch on all three days.<br /><br />An incentive is something that motivates or encourages an individual to take a particular action. In this case, offering free lunch to conference volunteers is an incentive for them to volunteer, as it provides a benefit for their participation.