The answer is: B. accommodation
Accommodation refers to a new information that can change people's existing perspective and transformed it into a new one.
in the case above, Ella's existing perspective was that all birds tweet. The parrots that showed by her friends is the new information. After seeing the new information, Ella changed her perspective towards how birds should sound.
The primary difference between Sparta and Athens is their differing systems of government. Sparta is considered an oligarchy, meaning ruled by the few, while Athens is believed by historians to have been a democracy.
A, B, and C are true so that would leave D as your answer.
The Scientific Revolution changed the perspective of many people in the world. Our universe was no longer the mystery that it once was. Some people were excited by these new discoveries and revelations while others were terrified of what they did not know and what it could do to their role in society.