Question: the optimum number of subordinates a manager can supervise is referred to as the
[{'answer': 'the optimum span of control', 'provenance': [{'wikipedia_id': '916176', 'title': 'Span of control', 'start_paragraph_id': 5, 'start_character': 15, 'end_paragraph_id': 5, 'end_character': 42, 'bleu_score': 1.0, 'section': 'Section::::Overview.\n'}]}, {'provenance': [{'wikipedia_id': '916176', 'title': 'Span of control', 'start_paragraph_id': 22, 'start_character': 0, 'end_paragraph_id': 22, 'end_character': 808, 'bleu_score': 0.984062469849008, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 7342416811848757764}, 'section': 'Section::::Theoretical considerations.\n'}]}]