The women shown in this photo were working which of the following outcomes?

The women shown in this photo were working on ratification of the nineteenth amendment. This is further explained below.
Generally, Congress passed the Nineteenth Amendment on June 4, 1919, and ratified it on August 18, 1920, guaranteeing the right to vote for all American women.
In conclusion, The 19th amendment was being ratified at the time these ladies were photographed.
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