The correct answer is O phrase. A phrase is a group of words that does not contain a subject and a verb and acts as a single part of speech. In this sentence, the underlined section "made of platinum" is a phrase that modifies the noun "ring". It does not have a subject or a verb of its own. A clause, on the other hand, is a group of words that contains a subject and a verb and can act as a sentence or part of a sentence. Personification is a figure of speech that gives human qualities to nonhuman things. None of these apply to the underlined section in the sentence.