What might have caused a rise in refirm movements in the 1800s

Explanation:

These movements were caused in part by the Second Great Awakening, a renewal of religious faith in the early 1800s. Groups tried to reform many parts of American society, but the two most important were the abolitionist movement and the women's rights movement. The goal of the abolitionist movement was to end slavery.

the answer should be:

their party has more members.

if i am right, give me a 5 star rating!

i would go with the last one