Julie read To Kill a Mockingbird and Romeo and Juliet, the assigned literature for English I, and decided to write a short narrative with a theme related to parental influence on children’s lives. Read Julie’s first draft response to that theme and answer the question. Click here to read Julie’s "To the Beach. " Cathy’s face offered a determined response her enthusiasm would not be diminished by her mom’s weak attempts at humor.

Which is the correct punctuation of the underlined part of this sentence?

offered a determined response, her enthusiasm
offered a determined response; her enthusiasm
offered a determined response . . . her enthusiasm
leave as is