is the group of words in bold a phrase or a clause? many traditional pets have lived in the white house, but…

is the group of words in bold a phrase or a clause? many traditional pets have lived in the white house, but some former presidents kept unique companions; for example, john quincy adams had an alligator that lived in a white house bathroom. phrase clause
Answer
Brief Explanations:
A clause has a subject and a verb. The bold - "some former presidents kept unique companions" has a subject "some former presidents" and a verb "kept". A phrase does not have both a subject and a verb. So, it is a clause.
Answer:
clause