Respuesta :
C shows us the significance of Khartoum in the battle against slavery, so this piece of information is the most important to help support the claim.
The other options give us specific information about the drum itself, its characteristics, origin, how to play it, which is interesting but really has nothing to do with its significance in relation to the claim and reason.
The other options give us specific information about the drum itself, its characteristics, origin, how to play it, which is interesting but really has nothing to do with its significance in relation to the claim and reason.