[Solved] Without vitamin C,collagen A) strands cannot dissociate into durable collagen fibers. B) binds with iron, which causes its fibers to become thick and sclerotic. C) takes on a helical structure that reduces its flexibility and strength. D) chains cannot cross-link to form strong, stable strands. Opiates: null False Memories: null Psychological Dependence: null Drug Dependence: null