Euphemism is a figure of speech where a word or phrase is used to avoid an unpleasent or offensive word, when referring to somethnig umpleasent or embarassing.
The examples of Euphemisms are A and C.
Stretching the truth= lying
put to sleep= killed, sacrificed
Oxymoron is a combination of contraditory words, or words that seem to have opposite meanings.
The examples of Oxymoron are B and D.
Bittersweet
Living dead
