Which of the Following Best Explains the Appeal of the Coastal

Which of the following best explains the appeal of the coastal theory of human colonization of the Americas?

A) The discovery of boat and raft remnants dating back to approximately 15,000 years ago supports the theory.
B) Humans used sea vessels to colonize the Island Pacific and Australia and were likely to have exhibited similar migration patterns in the Americas.
C) American terrain was particularly difficult to traverse, making coastal migration far more attractive to early humans.
D) Artifacts found throughout the Americas suggest that humans colonized the region rapidly, a feat only possible with coastal migration.