1.The verbal phrase in this sentence is option A: Frightened by the siren.
2.The verbal phrase is a participle: option B.
3.The Verbal Phrase Functions As an adjective. Option C
The verbal phrase is a participle (past participle) because it ends in ED. A participle is a form of a verb that can be used in compound tenses of the verb. There are two participles in English: the past participle, which usually ends in '-ed', and the present participle, which ends in '-ing'.
A phrasal verb is a verb that comprises more than one word. In this case it functions as an adjective because it is describing the subject.
