1)the seneca falls convention marked the beginning of the a)women’s rights movement. b)abolitionist movement. c)temperance movement. d)educational movement an accomplishment of andrew jackson’s presidency was a)establishing the spoils system. b)rejecting new voting rights. c)establishing the national bank. d)organizing the whig party.

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

you didn't list the options. however, a few communist countries today are: the people's republic of china, north korea, and cuba.