Why would captive africa become disoriented and mentally unstable during the middle passage

Captive African slaves would have easily become disoriented and mentally unstable during the middle passage due to the harsh conditions that they faced during this trip. Slaves were packed very closely together in the hulls of ships and were forced to spend long amounts of time there without movement and access to sunlight. These conditions would easily make a person disoriented and mentally unstable. 

They had strained relationships with colonists but good relationships with american indians

The answer is d. depriving colonists of trial by jury.