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

Which of the following definitions best describes the instance 'AIDS-related complex'?

A. A prodromal phase of infection with the human immunodeficiency virus (HIV). Laboratory criteria separating the instance (ARC) from AIDS include elevated or hyperactive B-cell humoral immune responses, compared to depressed or normal antibody reactivity in AIDS; follicular or mixed hyperplasia in ARC lymph nodes, leading to lymphocyte degeneration and depletion more typical of AIDS; evolving succession of histopathological lesions such as localization of Kaposi's sarcoma, signaling the transition to the full-blown AIDS.
B. A lesbian who appears masculine or acts in a masculine manner.
C. A meaning of a word or phrase that is suggested or implied to be sexual, as opposed its literal meaning, which may or may not be sexual in nature.
D. A gender-neutral slang term for external genitalia.

Answer: A prodromal phase of infection with the human immunodeficiency virus (HIV). Laboratory criteria separating the instance (ARC) from AIDS include elevated or hyperactive B-cell humoral immune responses, compared to depressed or normal antibody reactivity in AIDS; follicular or mixed hyperplasia in ARC lymph nodes, leading to lymphocyte degeneration and depletion more typical of AIDS; evolving succession of histopathological lesions such as localization of Kaposi's sarcoma, signaling the transition to the full-blown AIDS.