The best explanation for how humans populated the earth is

monasticism. people often do monasticism in monasteries

answer; the period of time known as the middle ages;

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! : )

the answer is b just took the test