The open door policy resulted from which of these factors?
the start of a communist revolution in china

the expansion of japanese territory in mainland asia

the rapid industrialization of southeast asian nations

the attempts of european nations to control trade in china

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! : )