What effect did Christopher Columbus' arrival to the Americas have on how Native American diversity has been viewed in the
past and present?
(A) His arrival helped people in the past learn to value all the different customs of each Native American
tribe, and people still value them today.
(B) His arrival marked the beginning of Native American diversity being overlooked in history, and some
people still think that way today.
(C) His arrival made different Native American tribes unite to welcome the European travelers, and this unity
still exists among tribes today.
(D) His arrival caused Native American tribes to become more diverse, and today Native American culture
is spread throughout the United States.