What is the PRIMARY focus of aerobic-base training in the ACE IFT Model?
A. Creating positive experiences and early success through achievable zone 1 exercise of increasing duration
B. Progressively increasing zone 2 intervals to intensities just below VT2
C. Building a strong endurance base as part of a periodization plan for performance in long-distance events
D.Transitioning from training for improved health to training for improved fitness
Answer: A