The first one. Description
I say that because it help develop the character.
I think "that" is the adjective clause because you can remove it without ruining the sentence.
<span>In bernice bobs her hair bernice is a very boring person and comes back to to town with her cousin marjorie who is one of the most popular girls in town. bernice overhears a conversation between marjorie and her mom about how shes boring and plain. Bernice decides to toughen up and confront mojorie about what she said a fight between the two comes and they go at it. Bernice comes to the conclusion that she will put herself in the shoes of marjorie and decides to bob her hair (cut it short). This makes her a bit more likable and a few weeks later she becomes the most popular girl in town and marjorie doesn't like it one bit. Bernice's change of character was very strong in this story and relates to the structure of the story because the story is about how bernice changes so quickly from borderline hated to the most popular the story is showing that people can change and how something subtle like changing your hair can lead to big things.</span>
The common noun here is "frog" as the only other noun, Many, is not a common noun - it's a proper noun.
"frog" here is the object of the sentence: it's the object of the verb "caught" of which the subject is Mary
