What relationship is shown by the market supply curve for labour?

Question 37 options:

1.) the relationship between the wage rate and the quantity of labour that workers are willing to supply

2.)the relationship between the price of output and the number of employees firms are willing to hire

3.)the relationship between the wage rate and the number of employees firms are willing to hire

4.)the relationship between the price of output and the quantity of labour that workers are willing to supply