Why does the unemploymenr rate remain about zero percent during economic expansions? is this a good or bad thing for the economy? explain

See below

Explanation:

When unemployment is about zero percent, everyone actively searching for a job will be employed. Expansion in the economy means growth in all industries, including manufacturing and services. As the industries grow, they will hire workers to help support growth. Continued growth will lead to the employment of more people, resulting in zero unemployment. Theoretically, it is possible to have zero percent unemployment.

Zero unemployment is bad a thing for the economy because of the following reasons.

you don't if you paid you paid. it's like if i bought a computer and used it then i say idon't want it anymore so im gonna return it. you can't. unlkess you have your reciept

idk the answer so dont listen too me