Final answer:
The temperance movement was the most divisive reform of the mid-1800s in America.
Step-by-step explanation:
The correct answer to the question is D. Temperance. The temperance movement was one of the most widespread reform movements in the mid-1800s. It called for reducing the use of or abstaining from alcoholic beverages. The movement gained support from religious reformers and the emerging American middle class who sought to address the social ills associated with alcohol consumption. The temperance movement aimed to improve the spiritual and social well-being of individuals and was seen as divisive due to differing opinions on personal freedoms.