A. Moderate. If he can carry on a conversation without running out of breath then he is probably not a stranger to that type of workout and is use to much harder tasks.
C. increases your reaction time
Explanation:
Types of training and training methods need to be understood well in order to select and design the appropriate training program for an athlete. Training is what athletes do in order to improve their performance. However, training gains are also specific to the training. Training benefits are specific to the speed of movement, muscles used, types of contractions, intensity and duration of the training. So it depends on the sport.