B: Occur naturally, have a fixed chemical composition
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Answer:
It is shown that the animals have human-like intelligence, and as a result chose to leave their home, but I'm not sure if there is enough evidence to prove any theme.
Explanation:
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The answer is a, ababcdcd
Martin Luther King Jr. organized a citywide bus boycott in support of Rosa Parks for refusing to obey segregation laws on public buses. The boycott lasted over a year and King became the new leader in the push for desegregation in all parts of society.