Some Human Resources employees are required to attend quarterly training sessions with the Director. Based on the information above, which of the following statements MUST be true? radio_button_unchecked All Human Resources employees are required to attend quarterly training sessions with the Director. radio_button_unchecked None of the Human Resources employees are required to attend quarterly training sessions with the Director. radio_button_unchecked All employees who attend quarterly training sessions with the Director work in Human Resources. radio_button_unchecked Some employees who attend quarterly training sessions with the Director work in Human Resources. radio_button_unchecked Some employees who attend quarterly training sessions with the Director do not work in Human Resources