Final answer:
Publicity was a vital need for strikers to gain public sympathy and support, shifting the narrative and influencing public opinion in their favor.
Step-by-step explanation:
Publicity was a vital need for the strikers mentioned in the excerpt from We Shall Not Be Moved because they needed the nation to hear and see their story (C). By gaining the public's attention through photos and eyewitness accounts of workers being harassed on the picket lines, strikers could garner public sympathy and support for their cause. During this time, there was widespread anti-union sentiment among the general public, and business owners often used various means to discredit unions. Public support could help to combat the negative portrayal of unions and show the true conditions and reasons behind the strike. Therefore, publicity was crucial in shifting the public narrative and ultimately influencing public opinion in favor of the striking workers, offering a counter-narrative to the one presented by business owners and anti-union entities.