Answer:
B / Option 2: The energy bars will replace the sugars her body is breaking down for energy.
Step-by-step explanation:
During prolonged exercise such as a marathon, the body uses stored carbohydrates and fats as fuel. As glycogen stores become depleted, the body will start to break down muscle tissue for energy, leading to fatigue and decreased performance. Consuming energy bars or other sources of carbohydrates during the run can help to replenish glycogen stores and provide a continuous source of energy, thereby improving endurance and delaying fatigue. It is important to note that energy bars should be consumed with water to prevent dehydration and ensure optimal absorption.