Which Factor Has Most Likely Prevented the Transgender Community from Achieving

Which factor has most likely prevented the transgender community from achieving recognition, respect, and equal treatment under the law?

A) They are believed to have a psychiatric condition that requires medical treatment by greater society.
B) They are generally more violent and prone to criminal acts than cisgender individuals.
C) They are relatively few in number and are often grouped in with the gay rights movement.
D) After transition, they are indistinguishable from cisgender people and do not need separate rights.
E) They are difficult to identify, so their existence is often uncertain.