The correct answer is "In this selection, the use of the word inundation is probably exaggerated."
In this situation, inundation is not a real inundation/flood, therefore it is not literal. It is a word used to exaggerate the fact that the housewives are constantly cleaning the house, sweeping and mopping. You can see that too in the excerpt "under the discipline of mops and brooms". We know the author is referring to the cleaning process and therefore, chooses to use the word inundation to create more depth to what he's describing.
