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

Which of the following definitions best describes 'HIV seropositive'?

A. A woman who identifies as queer.
B. A type of underwear that allows the wearer to defecate or urinate without the use of a toilet, by absorbing or containing waste products to prevent soiling of outer clothing or the external environment.
C. A serostatus in which an individual has detectable levels of an HIV marker within the serum.
D. A serostatus in which an individual has no detectable level of an HIV marker within the serum.

Answer: A serostatus in which an individual has detectable levels of an HIV marker within the serum.