Final answer:
Andrew Jackson was the President elected in 1828 who championed Jeffersonian democracy and state's rights, marking a shift toward a more democratic era in U.S. politics.
Step-by-step explanation:
The President elected in 1828 who continued the tradition of Jeffersonian democracy and state's rights was c) Andrew Jackson. Jackson embodied the principles of popular sovereignty and the expansion of voting rights to all white men, which were hallmarks of Jeffersonian democracy. His support for state's rights was evident in his deferral to states on issues such as the nullification crisis. The election marked a turning point in American political history, as Jackson's victory signified the end of the older politics of deference and the rise of a more democratic spirit in the United States.