Following a period of service in the uniformed services of less than 91 days, the employee must be reemployed according to the following priority:

(a) The employee must be reemployed in the escalator position. He or she must be qualified to perform the duties of this position. The employer must make reasonable efforts to help the employee become qualified to perform the duties of this position.

(b) If the employee is not qualified to perform the duties of the escalator position after reasonable efforts by the employer, the employee must be reemployed in the position in which he or she was employed on the date that the period of service began. The employee must be qualified to perform the duties of this position. The employer must make reasonable efforts to help the employee become qualified to perform the duties of this position.

(c) If the employee is not qualified to perform the duties of the escalator position or the pre-service position, after reasonable efforts by the employer, he or she must be reemployed in any other position that is the nearest approximation first to the escalator position and then to the pre-service position. The employee must be qualified to perform the duties of this position. The employer must make reasonable efforts to help the employee become qualified to perform the duties of this position.