Question: what is the most common transfused component of blood
[{'answer': 'red blood cells', 'provenance': [{'wikipedia_id': '88857', 'title': 'Blood transfusion', 'start_paragraph_id': 1, 'start_character': 322, 'end_paragraph_id': 1, 'end_character': 337, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '88857', 'title': 'Blood transfusion', 'start_paragraph_id': 59, 'start_character': 0, 'end_paragraph_id': 59, 'end_character': 82, 'bleu_score': 0.8702397637697911, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 322540288094225376}, 'section': 'Section::::Frequency of use.\n'}]}]