Question: what is the maximum data rate for the 802.11a standard select one
[{'answer': '54 Mbit / s', 'provenance': [{'wikipedia_id': '14739', 'title': 'IEEE 802.11', 'start_paragraph_id': 131, 'start_character': 24, 'end_paragraph_id': 131, 'end_character': 35, 'bleu_score': 1.0, 'section': 'Section::::Standards and amendments.\n'}]}, {'provenance': [{'wikipedia_id': '14739', 'title': 'IEEE 802.11', 'start_paragraph_id': 23, 'start_character': 0, 'end_paragraph_id': 23, 'end_character': 330, 'bleu_score': 0.8973962687698531, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 14961592681566640551}, 'section': 'Section::::Protocol.:802.11a (OFDM waveform).\n'}]}, {'provenance': [{'wikipedia_id': '14739', 'title': 'IEEE 802.11', 'start_paragraph_id': 0, 'start_character': 0, 'end_paragraph_id': 0, 'end_character': 0, 'bleu_score': 1.0, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 14961592681566640551}, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '14739', 'title': 'IEEE 802.11', 'section': 'Section::::Standards and amendments.\n', 'start_paragraph_id': 131, 'end_paragraph_id': 131, 'meta': {'evidence_span': ['IEEE 802.11a: 54\xa0Mbit/s, 5\xa0GHz standard', 'IEEE 802.11a: 54\xa0Mbit/s, 5\xa0GHz standard']}}]}]