Question: who played the young tonya harding in i tonya
[{'answer': 'Mckenna Grace', 'provenance': [{'wikipedia_id': '52893564', 'title': 'I, Tonya', 'start_paragraph_id': 13, 'start_character': 12, 'end_paragraph_id': 13, 'end_character': 25, 'bleu_score': 1.0, 'section': 'Section::::Cast.\n'}]}]