The Statistics survey does not outline the types of profit-sharing plans offered by manufacturing, high skilled services and low skilled services. Typically, profit-sharing plans include cash, stock, and/or stock options. Stock and stock options often require a number of years with the company before they are given (or can be exercised). Explain the benefits of stock/stock options over cash in principle/agent terms.

For this question, I feel confused that why it related about principle and agent