Only car salesmen typically work under a revenue-sharing plan. The answer is b. car salesman.
Insurance agents: While some insurance agents work on commission, which is a percentage of the premium they sell, it's not typically a revenue-sharing plan. The agent earns their commission regardless of the company's overall revenue.
Car salesman: Car salesmen often work on a commission basis, meaning they earn a percentage of the sale price of each car they sell. This is a direct example of a revenue-sharing plan, where the salesperson's income is directly tied to the company's revenue.
Waiters and waitresses: Waiters and waitresses typically earn an hourly wage and may receive tips from customers. While some restaurants may have a tip-pooling system where the tips are shared with other employees, this is not the same as a revenue-sharing plan. The waiter's income is not directly tied to the restaurant's overall revenue.
Therefore, only car salesmen typically work under a revenue-sharing plan.