According to lincoln which area of the confederacy was the key to the union victory? also explain why this area would be difficult to conquer:

well this is going to be a long answer lol ok so the visigoths were a branch of the goths who frequently raided rome, uh the hunas attacked the guptas a lot and weakened them, uuhm of course the romans used math and science in there every day lives i mean they had a whole empire to run, and rome was split into east and west by a general named diocletian. hope this you! : )

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the correct answer is a

answer; (b) asia;