The answer to your question is,
D. A repeated sound within a line of poetry.
-Mabel <3
Answer:
Riddle: What is always in front of you but can’t be seen?
solution: The future.
Riddle: What’s black and white and blue?
Solution: A sad zebra.
Riddle: What has four eyes but can’t see?
Solution: Mississippi
Riddle: Where can you find cities, towns, shops, and streets but no people?
Solution: A map.
Riddle: What has a neck but no head?
Solution: A bottle.
All from
https://www.fatherly.com/play/the-best-riddles-for-kids-not-confusing/
It might be clearer to say: According to the dictionary, a squawk is not the same thing as a squeak. there's no need for them to be plural in your sentence and it's likely that, in the dictionary, they're listed as "squeak" and "squawk" singularly. when describing dictionary definitions it's best to use the form of the word that the dictionary uses for clarity.
D. Mrs. Van Daan is jealous.