Final answer:
In the sentence given, "house" functions as a noun (option b), as it refers to a specific place or thing and is the object of the preposition "through" in the phrase "through the house".
Step-by-step explanation:
The part of speech for "house" in the sentence "We walked through the house in a counterclockwise path; the house was huge so it took us an entire day!" is a noun. In the given sentence, "house" is the structure or building that is being referred to, making it a person, place, thing, or idea, which are the types of words that nouns represent. It does not describe an action, quality, state, or manner, which would be characteristic of verbs, adjectives, or adverbs, respectively. Additionally, in the sentence provided, "house" serves as the object of the preposition "through" in the phrase "through the house," further confirming its role as a noun.
In the sentences you provided for reference, nouns, adjectives, verbs, and adverbs can be identified. The sentence "That of course; and when we had absolutely completed every particle of the furniture in this way, then we examined the house itself." employs "house" as a noun. Verbs such as "completed" and "examined" describe actions. Adjectives like "entire" modify nouns, and adverbs such as "absolutely" modify verbs, adjectives, or other adverbs. Identifying these parts of speech within a sentence is essential for understanding the grammar and structure of English sentences.