Which of the Following Is Not One of the Theories

Which of the following is not one of the theories about how America was originally settled?

A) Europeans sailed across the Atlantic in leather boats during the pre-Christian era.
B) Siberian hunters crossed from Asia to North American during the last ice age.
C) Humans arrived by boat and followed the coast southward from Alaska.
D) Humans arrived in multiple migrations
E) Hunters from Asia dispersed themselves over much of North America.