Question: who plays brittany on alvin and the chipmunks chipwrecked
[{'answer': 'Christina Applegate', 'provenance': [{'wikipedia_id': '32506361', 'title': 'Alvin and the Chipmunks: Chipwrecked', 'start_paragraph_id': 1, 'start_character': 382, 'end_paragraph_id': 1, 'end_character': 401, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]