Correct Answer: C

Rationale: A noun is a word that names a person, place, thing, or idea. In the given sentence, 'aroma' is the noun as it names a specific thing, in this case, a smell. 'Filled' is a verb showing an action, 'kitchen' is a place, and 'freshly' is an adverb modifying the adjective 'baked.' Therefore, 'aroma' is the correct choice as the noun in this sentence.

Correct Answer: B

Rationale: In the sentence, 'Agatha Christie' is the appositive. An appositive is a noun or noun phrase that renames or clarifies another noun or pronoun in a sentence. In this case, 'Agatha Christie' renames the noun 'author.' The appositive provides additional information about the noun it follows, enhancing the reader's understanding. Choices A, C, and D are not appositives. 'Favorite' is an adjective describing 'author,' 'many' is an adjective describing 'novels,' and 'novels' is the direct object of the verb 'wrote,' not an appositive.

Correct Answer: D

Rationale: The correct answer is D because it uses a question mark within the quoted material as it is a direct question. In this case, the sentence is a reported question, so it does not need additional punctuation within the reported speech. Choice A is incorrect as it incorrectly adds a comma before 'if.' Choice B is incorrect because a colon is not appropriate before 'if' in this context. Choice C is incorrect as it adds an unnecessary comma after 'wanted.'

Correct Answer: B

Rationale: The correct spelling of the past participle of the verb 'lie' (to recline) is 'lain.' 'Lied' is the past tense form of the verb, not the past participle. 'Lay' is the simple past form. 'Lying' is the present participle form. Therefore, the correct answer is 'lain,' representing the past participle form of the verb 'lie.'

Correct Answer: D

Rationale: Ordinals (numbers with "th", "st", "nd", etc.) are generally written as words when used before nouns. Option (d) is correct.