Context: Heidi visited the dog park for the first time yesterday . She 's got little dog syndrome and she barks and causes all sorts of ruckus when she sees other dogs . I always tell her that the big dogs could eat her like a chicken nugget but that does n't stop her from acting tough and defending her people .

Question: Is the dog aggressive ?
Options:
0. yes because it 's small
1. the dog is friendly
2. None of the above choices .
3. no the dog is happy
Answer: 0