Read the sentences. 1. My best friend, Irie, moved to our neighborhood last year. 2. His family bought the scary, old, Victorian house on our street. 3. I couln't believe someone actually bought that house! 4. Kids used to speed up on their bikes or run past it, and they'd only slow down when they got to the next driveway. 5. Within a few months, Irie's family completely changed it. 6. People now stop to take photos of the beautiful house and the giant red roses.

Which sentence has an error in punctuation?

a Sentence 2
b Sentence 4
c Sentence 5
d sentence 6