Emphasizes both the aerobic and the anaerobic types of exercise aPlyometrics bCircuit Training cCardio Training dInterval Training

To determine which type of exercise emphasizes both aerobic and anaerobic components, let's analyze each option:

1. Plyometrics: Primarily focuses on explosive strength and power through rapid movements. It is mostly anaerobic.

2. Circuit Training: Involves a sequence of exercises performed one after another with minimal rest. It combines strength training and aerobic conditioning, thus incorporating both aerobic (endurance) and anaerobic (strength) aspects.

3. Cardio Training: Primarily targets cardiovascular endurance and is mainly aerobic in nature, not significantly anaerobic.

4. Interval Training: Alternates between high-intensity anaerobic exercise and low-intensity aerobic recovery periods. This method also combines both aerobic and anaerobic components within the same session.

Conclusion

Between the two options, Circuit Training and Interval Training both emphasize aerobic and anaerobic activities. However, the best answer that succinctly captures this dual emphasis in a structured format is Circuit Training (b), as it typically entices participants to perform various exercises targeting different muscle groups and energy systems.

Final Answer

b. Circuit Training