Answer:
Economic Factors Most of the studies indicate that migration is primarily motivated by economic factors. In developing countries, low agricultural income, agricultural unemployment and underemployment are considered basic factors pushing the migrants towards developed area with greater job opportunities
Explanation:
The only example of a historical argument would be "<span>B.The Roman Empire traded with Han China because Chinese silk had been found in early Roman cities," since this would require some evidence in order to be convincing. The other options are either questions on basic facts. </span>
Immigrants....................................