The International Ladies' Garment Workers Union became one of the first successful unions of mainly women workers after a
staging a massive strike that led to employers granting better pay and shorter work hours
b
calling attention to the unfair treatment and payment of child laborers in the textile factories
c
holding a series of public rallies that shed light on the issue of unsafe working conditions
d
allowing immigrant workers to join, which caused a sharp increase in their membership

a. staging a massive strike that led to employers granting better pay and shorter work hours

Explanation:

The International Ladies' Garment Workers' Union (ILGWU) was the industrial union of women in the textile industry of the US and Canada.

They have successfully staged the massive strike known as "the Uprising of 20,000" in 1909. in New York City. The workers were mainly women and immigrants, and police have violently attacked them on multiple occasions. The result was the agreement on better conditions and higher wages, but not all Factories did comply.

Therefore, ILGWU led another strike in 1910, even a larger one, finally settling for the compromise. The agreement is known as the “protocol of peace” and it established better and safer conditions, higher wages, shorter working hours, paid overtime work, an agreement on certain Unions and Boards.

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