The answer is C. Unexplainable muscle weakness or pain.
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The multimedia ad from the Centers for Disease Control's advertising campaign for the flu vaccine includes image and text.
It does not include animation since the image or photograph is moving, it doesn't include a graph or chart since it is not discussing or promoting statistics.
Public safety regulations protect workers because they provide regulations about various aspects of public safety that increase the safety of different job-related possible occurences which could influence how workers perform their job (mostly in terms of their own safety).
