Question

Which of the following statements is a literary allusion? "My favorite book is To Kill a Mockingbird. You should read it." "I can't believe she did that to me. From now on, we'll just call her Brutus!" "The journey of Ulysses, the main character in The Odyssey, is affected by a number of Greek gods and goddesses including Zeus and Poseidon." "The Scarlet Letter is about a young woman named Hester who is forced to wear a letter A on her clothing."

Answer 1

The answer is "I can't believe she did that to me. From now on we'll call her Brutus"

the others are just facts about famous literature.
This answer uses Brutus, who stabbed his friend in the back, in a common sentence. Whoever is upset at a girl for doing something wrong alludes to Brutus from Julius Caesar