Which of the following, if true, helps to explain why companies are not experiencing problems in retaining employees?
(A) As the number of years an employee has worked for a company increases, the rate at which the company contributes to the employee's pension benefits increases.
(B) Potential employees prefer to work for companies that offer them pension plans rather than for those that do not.
(C) Most companies that do not offer traditional pension plans offer plans in which their employees enjoy rights to retirement benefits as soon as they enter employment.
(D) An employee is more willing to leave an employer after gaining full rights to pension benefits than before gaining such rights.
(E) Employers have always been reluctant to lose highly trained employees.
OA: A
Can someone help to figure out why D is incorrect