Hey there!
First, make sure you know what an abstract noun is.
Abstract Noun-<span>a noun denoting an idea, quality, or state rather than a concrete object.
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In this case, the answer is D(Logic is easily understood)
I have never read what you are asking, but just by looking at it, I would assume that he is stereotyping Dutch people, because he is calling Black Dog an insult, which is "son of a dutchman".
If you mean dispersion it mean splitting light into 7 parts.
They are used to create artificial rainbow effects
<span>he is envious of him because he gets to play soccer.</span>
