In the question below, a premise is provided. Choose the option that represents the statements that most strengthen the argument. Premise: A five-year study of organizations that introduced flexible working arrangements, including hybrid work and flexible working hours, found that these organizations experienced an average 12 percent improvement in employee retention compared with organizations following completely fixed work schedules. The study, conducted by a group of workplace researchers and HR professionals, suggests that greater flexibility helps organizations retain employees by improving work-life balance and employee satisfaction. This finding is particularly significant as organizations increasingly debate whether flexible working arrangements should become a permanent part of workplace policy. Which of the following, if true, STRENGTHENS the argument? 1. The study found that employees working under flexible arrangements reported significantly higher levels of satisfaction with their ability to balance personal and professional responsibilities. 2. The research showed that the positive effect of flexible working arrangements on employee retention remained significant even after controlling for differences in salary, job level, and organizational size. 3. Organizations that introduced flexible working arrangements also reported a decline in the number of employees leaving specifically because of work-life balance concerns.