Open Question: If me and my fiancee had a child what would his/her race be?

My fiancee is Arab-Moroccan(guy) living in Morocco. I am a Black-American(girl) living in the states. If we had a child, what would his/her race be? Arab or Black? Let me clarify my questions for all you dummies who failed to be funny with your corny a** jokes. What would my child be from a legal point of view. Thats means when I am filling out an important document what would be best say.