Answer:
b. the demand curve shows the demand for labor by businesses, and the supply curve shows the supply of labor by people.
Explanation:
Labor market is any arrangement that brings businesses, government and other economic unit seeking to get the best employees at the best price (demand for labor) into contact with those people seeking for paid jobs (the supplier of labor) for the purpose of entering into an employment contract.
The job seekers which represents the household possess some skills that is being demanded by the firms in the labor market. The job seekers is the supplier of skills while the firm demands for the skills.