Question: which of these is the best description of a monopoly answers.com
[{'answer': 'a single seller', 'provenance': [{'wikipedia_id': '18878', 'title': 'Monopoly', 'start_paragraph_id': 1, 'start_character': 734, 'end_paragraph_id': 1, 'end_character': 749, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'a specific person or enterprise is the only supplier of a particular commodity'}, {'answer': 'a business entity that has significant market power'}, {'provenance': [{'wikipedia_id': '18878', 'title': 'Monopoly', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 1050, 'bleu_score': 0.930363412652594, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 15516968103467919660}, 'section': 'Section::::Abstract.'}]}]