Hyperbole is the best answer here because Mrs. White is making a point at the ridiculousness of the monkey's paw being able to grant a wish. She could easily say an extra pair of hands, but instead she goes with four knowing it will sound ridiculous.
None of the other choices are good answers because there is no example of them in the excerpt we are asked to read.
A Compound sentence it has 2 independent clauses that has related ideas that can be joined by a coordinating conjuction.
