Which of the following is true of the Worker Adjustment and Retraining Notification Act?

It requires private and commercial organizations that employ $100$ or more full$-$time workers who have worked more than six months in the previous year to give a $60-$day notice before implementing a layoff or facility closing that involves more than $50$ people.

It requires private and commercial organizations that employ $50$ or more full$-$time employees who have worked more than three months in the previous year to give a $60-$day notice before implementing a layoff or facility closing that involves more than $30$ people.

It requires private and commercial organizations that employ $20$ or more full$-$time workers who have worked more than a year with the organization to give an $80-$day notice before implementing a layoff or facility closing that involves more than $10$ people.

It requires private and commercial organizations that employ $50$ or more full$-$time workers who have worked more than a year with the organization to give an $80-$day notice before implementing a layoff or facility closing that involves more than $20$ people.