Which group would most likely support manifest destiny?
(a) whigs
(b) abolitionists
(c) northern manufacturers
(d) democrats
(e) native americans

It would be the "Democrats" who would most likely support Manifest Destiny, since during this time in the US the Democrats were largely in favor for the expansion of slavery, which required the US gaining more land in the west. 

Which reforms did gandhi initially promote when he joined the national congress