A group of generally pleasant or peaceful words meant to take the place of harsher, blunter statements is called euphemism.
A euphemism is a word or phrase that is rife within everyday language and conversation. They allow us to have uncomfortable conversations without using unsettling language. It is an innocuous word or expression used in place of one that is deemed offensive or suggests something unpleasant. For example, a boss telling an employee they are “let go” instead of “fired” aims to soften the blow.
Therefore, (C) option is the correct answer.
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