Which of the following statements is true regarding nondiscrimination testing for profit-sharing plans? A.Contributions cannot be higher for highly compensated employees compared to rank-and-file employees. B.Contributions can be higher for shareholders, officers, and highly compensated employees as long as a required minimum contribution is made for rank-and-file employees C.The contributions must be equal for all employees D.There is no requirement to do nondiscrimination testing on profit-sharing plan contributions