Задайте 4 типа вопроса к следующему предложению: an employer has several option to consider when he wants to hire a new employee.

1 Does an employer have several options to consider when he wants to hire a new employee?
2 Does an employer have several options to consider when he wants to hire or fire a new employee?
3 What options does an employer have to consider when he wants to hire a new employee?
4 An employer has several options to consider when he wants to hire a new employee, doesn't he?