Publicity was a vital need for the strikers because they needed the nation to hear and see their story. Thus, the correct option is C.
Publicity may be defined as the process of enticing public concentration to somebody or something, etc, by the service of the mass media.
The context of this story illustrates the actions of strikers for their needs and benefits. They are performing such types of actions to withdraw the attention of the national people to hear and see their story.
Therefore, the correct option for this question is C.
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