The "corrupt bargain" in the election of 1824 referred to: a. the blatant miscounting of ballots in the Electoral College b. Jackson’s promise to make Calhoun his vice president c. Jackson’s belief that the Constitution had been disregarded d. the belief that Clay supported Adams in return for becoming secretary of state e. the widespread purchase of votes in several states

Option D,  the belief that Clay supported Adams in return for becoming secretary of state

Explanation:

In the election of 1824, none of the candidates was successful in getting majority votes due to which the  House of Representatives elected John Quincy Adams. It is believed that Clay convinced the House of Representatives to elect Adams. Later, Adams selected Clay as the Secretary of State. This setting of clay and Adams appeared as a "corrupt bargain" to the supporters of Jackson

Hence, option D is correct

the answer to your question is a. the salt plains

in 1811, he led an expedition, known as the george c. sibley expedition, to improve relations with the pawnee and kansa tribes, and also to locate the rumored jefferson's salt mountain