Final answer:
The unsuccessful tannery workers' strike could be attributed to violent clashes with the police, government intervention, or a lack of public support, similar to historical incidents like the Great Railroad Strike of 1877.option a is correct
Step-by-step explanation:
The unsuccessful strike by tannery workers could technically be attributed to any of the factors mentioned depending on the historical context, but based on the information provided and historical precedents, the most plausible answer leading to the failure of a strike during earlier labor movements would likely be violent clashes with the police, government intervention, or a lack of public support.
Given the provided details, we can deduce that both violent confrontations and government action played critical roles in undermining the workers' protests, as seen in various incidents such as the Great Railroad Strike of 1877, where militiamen fired upon striking workers. Often, these types of worker protests and violent outcomes would lead to the public becoming less sympathetic to the strikers' cause, thereby adding to the reasons a strike could fail. However, without more specific context, identifying one single reason for the tannery workers' strike failure is challenging.