The Translated sentence would be "Bag: How can he have black"
I don't really understand what the question is asking though if you have any other context about the question it would be a lot more helpful in order for me to help you.
"Bolsa" is a feminine noun and does not match a masculine adjective as it is "negro". You have to use the masculine equivalent of "bolsa", that is "bolso". "Negro bolso" matches gender and is correct in Spanish.
