Male, because that's her genetic sex. Note that gender and sex are two different, not necessarily correlated things. Sex is the sum of your physical character

Male, because that's her genetic sex. Note that gender and sex are two different, not necessarily correlated things. Sex is the sum of your physical characteristics; gender is what you feel and/or identify as. She identifies as a woman, and has in fact had sexual reassignment surgery (giving her most female physical characteristics). She's a woman, and female.