Answer:
c. transgender
Step-by-step explanation:
A transgender is a person who identifies with a gender other than which he or she was assigned at birth or whose genitals are inconsistent with his o her gender.
A transsexual is a person who has finished his or her transition to the gender they desire. They either had a genital reassignment surgery or consider such surgery as fundamental for their gender identity.
A transphobic is a person who shows negative feelings or actions towards trans people.