Answer:
British believed that most Southerners were Loyalists and that if they gained territory in the South, the Southern Loyalists would hold it for them. Believed that large number of Southern slaves would join them in return for promise of freedom.
Human made object, mostly a item of culture or historic interest
The correct answer is second one
Above the 1st Cataract of the Nile up to the confluence at Khartoum.