In the 1870s, groups of women began marching from church meetings to nearby saloons. they knelt in prayer on the saloon's floor or on the street to block the entrance. the main reason women did this was to
a. protest gambling in saloons
b. to encourage saloon patrons to buy bibles
c. to encourage people to attend church
d. to protest the drinking of alcohol

The main reason why that group of women knelt in prayer on the 1870s saloon floor was: D. to protest the drinking of alcohol

They are most likely supporters of the temperance movement of 1870s. These group demanded the government to create laws and regulations that prohibit the sales of alcohol in united states.  Most of them are members of Church community.

the answer is option a.

answer; /// i believe that they became successful farmers; ///////////////