D and B to some extent are the same things that come with each other.
For most, B.
A prerequisite is something that is necessary before doing something. So the prerequisite for developing interview questions is to D. gain a basic understanding of the topic.
D. Adjective; in the given phrase serene is an adjective part of speech.
More about part of speech:
Every word in the English language is referred to as a part of speech. Whichever part of speech a word belongs to is indicated by its function in a phrase. Words that fulfil several functions in a phrase are referred to as parts of speech. Some speech components can also serve the purposes of other speech components.
It has a number of eight parts of speech. Nouns, pronouns, verbs, adverbs, adjectives, prepositions, conjunctions, and interjections are examples of parts of speech.
Learn more about the part of speech here:
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The narrator is Stephen Fry
