Wrench, beach, rock, witch.
The word diction comes from the Greek "lexis"; this concept refers to the actual words used in a literary work, such as in a poem. The choice of words contributes significantly to the meaning and tone of the text. The correct option in this case is B. The speaker shows his sarcasm by using the word ridiculous to describe May.
It's really important to know your audience when you start writing something. For example, if you want to write a dystopian novel, usually teens and young adults read such books, so you want to modify your novel and theme a bit to better suit their interest and understanding. You need to decide on which group of readers you want to write for so that you can adjust themes, motifs, characters, etc.