The correct option A). adjunct. An adjunct professor is essentially as part-time, postsecondary teacher.
What is an adjunct professor?
An adjunct professor is a part-time professor for a college or university. They do not hold the permanent position at particular academic institution.
An adjunct professor is not required to participate in the academic responsibilities and research like the other full time professors.
Basically, they are hired on the contractual basis.
Learn more about the adjunct professor here:-
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