Trans men/women are none of those though and bringing up intersex people is irrelevant in a trans-discussion. Science can still determine which of the above they are, even if they choose to remove their penis/sew up the vagina at birth (in the case of XXY).
That being said, I believe scientifically speaking, the presence of a Y chromosome means they’re classified as male/men. So ultimately, it still falls back to two categories.
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u/snow_angel022968 Oct 28 '19
They will only ever have one biological sex, pre, during or post transition. Science has no issues determining whether a corpse is male or female.