Answer:
B, transsexual
Step-by-step explanation:
A transsexual person does not accept their gender identity and undergoes medical treatment to align with their chosen gender.
Transgender is another term for transsexual but a transgender person does not necessarily seek medical assistance to change their gender identity.
The transition from one sex to another starts with hormone therapy where gender specific traits are stopped or enhanced. Later on, sex reassignment therapies are introduced (surgery), and some psychological help is offered in order to help adjusting to the new gender.