Final answer:
Antebellum reformers were primarily motivated by social change and justice, seeking to improve society and address various social issues.
Step-by-step explanation:
The motivations of antebellum reformers can be described as primarily motivated by social change and justice. These reformers were driven by a desire to improve society, promote equality, and address various social issues. They sought to combat slavery, advocate for women's rights, promote temperance, and improve conditions in prisons and asylums.