Suppose Emily was training for a marathon and followed a strict diet and exercise regimen. She made sure to eat a balanced diet high in protein and complex carbohydrates, and she ran for at least 10 miles every day leading up to the race. On the day of the marathon, Emily crossed the finish line in first place, breaking the course record.
Can we infer that "Emily's training regimen and diet directly contributed to her success in winning the marathon."? Yes, no, or maybe?