Why are Adrians possible appearances limit to three options (Caucasian, African-American or Native-American)?
He is from the American Revolution era, making sense that these were the most likely race groups in America at that period.
Additionally, there's nothing in the story to suggest that the third Adrian option is Native American—he could just as easily be assumed to be Latino or Arab. The data files say the third option is Latino.
According to Kamilah herself, she is around 2000 years old, and she claims to be Cleopatras cousin, who was born around the year 69 BC and died around the year 10 or 12 BC, making Kamilah a lot younger than Cleopatra could have been.