The best answer for the question "Which one of the following words is an irregular noun plural?" is D. Geese.
Here's why:
1. Irregular nouns form their plurals in unique ways, deviating from the typical "-s" or "-es" endings.
2. In this case, "geese" is the plural form of the singular noun "goose." This transformation from "goose" to "geese" is irregular and doesn't follow the standard rules of adding an "s" or "es" at the end of the word.
3. The other options, such as animals, automobiles, and houses, form their plurals by simply adding an "-s" at the end, making them regular plural nouns.
Therefore, out of the options provided, "geese" is the irregular noun plural because it changes in a unique way from its singular form "goose."
