Task: Instance Class Understanding (ontology: Sciences/Biology)

Which of the following classes does 'transgenderist' belong to as one valid explicit type? Context: Broadly, a transgender person. Sometimes narrowly used to refer to a transgender person who is living full-time using the gender expression which matches their gender identity without considering surgeries related to genitalia.

A. specialized object
B. video
C. media
D. obsolete medical term

Answer: obsolete medical term