Supporters of states' rights in the 1830s believed that states had the right to nullify federal laws. So, the correct option is:
States had the right to nullify federal laws.
States' Rights in the 1830s:
In the 1830s, the United States was a relatively young nation still grappling with fundamental questions about the balance of power between the federal government and individual states.
The concept of states' rights had been a central issue since the founding of the country and continued to be a source of intense debate. Supporters of states' rights believed that the states, as independent entities, possessed certain inherent rights and authority that the federal government could not infringe upon.
The 10th Amendment:
To understand the beliefs of states' rights advocates in the 1830s, it's essential to consider the 10th Amendment to the United States Constitution.
The 10th Amendment states: "The powers not delegated to the United States by the Constitution, nor prohibited by it to the States, are reserved to the States respectively, or to the people." This amendment was crucial to the states' rights argument.