The correct answer is C. The participial phrase barking in the yard modifies dog.
Explanation:
To begin with, a participial phrase is a set of words that contains a participle, which is a word that derives from a verb, ends in -ing or -ed and acts as an adjective modifying or describing a word. This implies, in the case of the sentence "The dog barking in the yard for the last three hours is giving me a headache" the participial phrase is "barking in the yard" as this contains the participial "barking" that end in- ing, acts as an adjective rather than a verb and describes the noun "dog". Thus, the answer that identifies the participial phrase and word that modifies is "The participial phrase barking in the yard modifies dog".
The participle phrase in the above sentence is 'barking in the yard'
The participle phrase starts either with the present (dependably ending with -ing) or past (dependably ending with -ed)
The participle phrase includes the modifiers or objects to complete the thought of the sentence. For instance, in the above sentence 'barking' is in present and modifies the word 'dog'. Therefore, the participle phrase acts as an adjective always, providing a description of the sentence.
Therefore,the participial phrase barking in the yard modifies dog.
