Answer:
An author uses contradictory words to make readers pause and think about the contrasting idea: Oxymoron.
An author uses the same phrase over and over to emphasize key information: Repetition.
An author references a famous person to build a connection with the readers: Allusion.
An author uses a series of words that start with the same sound to create a rhythm with the words: Alliteration.
Explanation: Edmentum/plato