Final answer:
The statement is true because a professional indicates someone who is engaged in a profession with significant education and training. These roles often require occupational licenses, underscoring expertise and adherence to standards, and cover a variety of jobs in different fields.
Step-by-step explanation:
The statement that a professional is a member of a profession or any person who earns a living from a specified professional activity is generally true. Professionals are often characterized by their commitment to competence in a particular field that typically requires significant education and training. A wide array of occupations can be termed as professional jobs, ranging from associate-level nurse's aides to management positions in various industries. These roles not only demand comprehensive education but often require the attainment of appropriate occupational licenses to substantiate one's expertise and adherence to industry standards.
Occupational licenses, which are typically issued by government agencies, establish credibility by showing that a professional has met certain educational criteria or passed relevant examinations. Jobs such as doctors, teachers, nurses, engineers, accountants, and lawyers mandate holding a license. This same requirement of licensure extends across a multitude of service jobs, with varying degrees of training and wage potentials. This reflects in the labor market dynamics where about 29% of U.S. workers' roles stipulate having job-specific occupational licenses, according to a study from the University of Chicago.