Aerobics instructor: Compared to many forms of exercise, kickboxing aerobics is highly risky. Overextending when kicking often leads to hip, knee, or lower-back injuries. Such overextension is very likely to occur when beginners try to match the high kicks of more skilled practitioners. Which one of the following is most strongly supported by the aerobics instructor's statements? ['Kickboxing aerobics is more risky than forms of aerobic exercise that do not involve high kicks.', 'To reduce the risk of injuries, beginners at kickboxing aerobics should avoid trying to match the high kicks of more skilled practitioners.', 'Beginners at kickboxing aerobics will not experience injuries if they avoid trying to match the high kicks of more skilled practitioners.', 'Skilled practitioners of kickboxing aerobics are unlikely to experience injuries from overextending while kicking.']