Answer:
The correct answer is "production"
Explanation:
The government uses different categories to classify the different jobs offered in the private and public sectors. The "Professional and Related Occupational Cluster" includes different jobs, including "computer and mathematical science occupations" (code: 15-0000), "life, physical and social science occupations" (code: 19-0000), and "community and social services occupations" (code: 21-0000). "Production" is not categorized into this cluster, as it involves other kinds of jobs that are not necessarily related to workers having a professional degree of studies.
