I believe the answer is D. it would cover the most bases of history.
Taking into account this context, it could be said that "to appease", in this case used as an adverb "<span>appeasingly", might mean to calm, to soothe. the term is related to how the dog was able to calm him down. at first its actions seem to bother him but then he might give in and "flattered down its (the dog) ears" as a gesture to thank it for being there when he felt the second time.</span>
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Answer:
The principle of holism declares that the whole is more than the sum of its parts. A holistic perspective looks at each component part and how it is connected with one another to create a cohesive whole
A dictionary maybe the online ones on google.