What movement did the Oklahoma People's Party support?

The Oklahoma People's Party, also known as the Populist Party, primarily supported the interests of farmers and laborers in response to economic struggles they faced during the late 19th century. The correct choice is the labor movement, as the party sought to address the needs and rights of workers, advocating for reforms such as better wages and working conditions. While the temperance movement played a significant role during that era, with some overlap in membership, it was not the central focus of the Oklahoma People's Party's agenda. Rather, the party emphasized the plight of agrarian reform and labor rights, seeking to unite discontented farmers and laborers against the inequalities perpetuated by industrial and financial elites. Understanding this context clarifies the party's alignment with the labor movement's objectives rather than the other movements listed.