Which type of union would engineers, nurses, and physicians most likely belong to?

The correct answer is professional. Engineers, nurses, and physicians typically engage in professions that require specialized education, training, and credentials. Professional unions focus on advocating for the rights and interests of members in these specialized fields, providing support in areas such as job security, working conditions, and professional development.

These unions work to maintain standards within the profession, often engaging in lobbying efforts for relevant legislative changes or enhancements to the field, which is crucial for professions that are heavily regulated and require licensure. This high level of expertise and the necessity for ongoing education and advocacy align well with the characteristics of professional unions.

In contrast, other types of unions, such as industrial unions, focus primarily on organized labor within broader sectors or industries, and services unions tend to represent workers in service industries rather than those requiring specific professional credentials. Nongovernmental unions may also cover a wide range of sectors but do not specifically cater to the unique needs and issues faced by professional practitioners like engineers, nurses, and physicians.