Where has the standard of living risen most steeply since the mid-twentieth century
a democratic nations
b developing nations
c colonial nations
d developed nations

which

like dude you only explained

the problem not the

answer:

won re-nomination with no opposition he also had the support of his party

explanation:

it saw incumbent president andrew jackson, candidate of the democratic party, defeat henry clay, candidate of the national republican party. jackson won re-nomination with no opposition, and the 1832 democratic national convention replaced vice president john c. calhoun with martin van buren.