During a 400-metre sprint, an athlete experiences a rapid increase in lactate levels. Which statement correctly explains what happens to the athlete's body during this activity?
- The aerobic energy system is the primary energy provider, resulting in decreased lactate levels
- Lactate production increases as the body relies on the ATP-PCr system for energy
- The athlete's muscles use more oxygen, which reduces lactate production in the bloodstream
- Lactate accumulates in the muscles as the glycolytic system produces energy without sufficient oxygen