What Is Most Often True for Transsexual People Who Take

What is most often true for transsexual people who take cross-sex hormones?

A) If they choose to stop taking hormones, changes up to that point are permanent.
B) If they choose to stop taking hormones, some changes will be reversible and some will be permanent.
C) If they decide to stop taking hormones, they will experience serious side effects because their hormones will no longer be in balance.
D) If they decide to stop taking hormones, all of the changes will be reversed.