Final answer:
The last training activity to be performed when cross training is endurance training.
Step-by-step explanation:
The correct answer is B. Endurance training.
According to the neuro-metabolic system continuum, endurance training activities would be performed last when cross training. Endurance training focuses on improving cardiovascular health and increasing muscular endurance. Activities such as cycling, walking, and running are examples of endurance training exercises.
Strength training (A) and power training (C) aim to increase muscle strength and explosive power, respectively. Stability training (D) focuses on improving balance and core strength. These types of exercises are typically performed before endurance training in a cross-training program.