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

Which of the following definitions best describes the instance 'MTF'?

A. A portmanteau of "straight" (heterosexual) and the slur "faggot". Usually used in a joking and/or reclamatory sense to describe heterosexual people who are homophobic.
B. Short for "male-to-female" or "male-to-female transsexual" (rarely, "male-to-female transgender person"). Although the instance is preferred by some transgender women, it can be seen as implying that a transgender woman was not always a woman or as implying steps of medicalization as necessary for being transgender.
C. The gay elite; the class of gay people considered as having money and power. the instance man (rarely a lesbian) who has power, wealth, or social standing. Usually such a person is white and middle- or upper-class.
D. A quick sexual encounter occurring at lunchtime.

Answer: Short for "male-to-female" or "male-to-female transsexual" (rarely, "male-to-female transgender person"). Although the instance is preferred by some transgender women, it can be seen as implying that a transgender woman was not always a woman or as implying steps of medicalization as necessary for being transgender.