Answer:
B. arrive in Asia; arrive in the Americas
Explanation:
The Homo Sapiens has started off in Africa. As the numbers were increasing, climate was changing, and the resources were becoming less and less, the species started to migrate out if its cradle. The migration was going from Africa to the Middle East initially, as well as in Europe through Gibraltar.
Gradually, the Homo Sapiens managed to take over the territory of the Neanderthals, and it started to spread out more and more across Eurasia. The migrations didn't stopped there though, but the humans continued through the islands of Southeast Asia and eventually reached Australia, later continuing in the Pacific Islands.
Part of the populations that lived in Eastern and central Siberia started migrated in few waves through the Bering Strait in North America, moving south and reaching Central and South America.
Oklahoma lands have always provided a combination of nutritious grasses and productive grain farms to the cattle industry. In the late 1880s, the open range reached to an end. Ranchers began to build closed-range ranches in Oklahoma since more railroads had made long cattle drives less necessary (Option B is the correct answer). Not only did the railroads allow the transport of cattle, but also it brought homesteaders and sheepherders to the plains. Besides, those homesteaders plowed up the prairie and enclosed the plains with barbed wire. At the same time, cattle ranchers started to fence huge tracts for their own use. As a result, conflicts between ranchers and homesteaders over land and water rights began to arise.
I can not help you because there is no evidence from the text- sorry.