is the group of words in bold a phrase or a clause? built to honor all the gods, the pantheon is a monument…

is the group of words in bold a phrase or a clause? built to honor all the gods, the pantheon is a monument that is an exceptional example of ancient roman architecture. phrase clause
Answer
Brief Explanations:
A phrase is a group of words without a subject - verb combination. The bolded part "an exceptional example of ancient Roman architecture" has no subject - verb pair. A clause has a subject and a verb. Since there is no subject - verb in the bolded part, it is a phrase.
Answer:
phrase