Final answer:
Continuous and interval training are the two sub-categories of continuous aerobic training for improving cardiovascular fitness and endurance. Hence the correct answer is option C
Step-by-step explanation:
In continuous aerobic training, there are two sub-categories: continuous and interval training.
Continuous aerobic training involves maintaining a steady pace of moderate-intensity exercise for a prolonged period of time without interruptions or breaks. Examples of continuous aerobic exercises include running, cycling, and swimming at a moderate pace.
Interval aerobic training involves alternating between periods of high-intensity exercise and periods of lower-intensity or rest. This type of training is beneficial for improving cardiovascular fitness and endurance. Examples of interval aerobic exercises include high-intensity interval training (HIIT) workouts and fartlek training.
Hence the correct answer is option C