Answer:
A. Euphemism
Explanation:
Euphemisms are idiomatic expressions that are mild, indirect or polite, used to substitute a word with unpleasant, offensive or harsh connotations. We tend to use these expressions frequently, sometimes without even realising it, some of them are: "He bit the dust" instead of "he died", "The company has a negative cash flow" instead of "It's broke", "She's over the hill and picking up speed" instead of "she's really old" and "Comfort woman" instead of "prostitute".
