Who were the core supporters of the new Whig Party that fully emerged

Who were the core supporters of the new Whig Party that fully emerged in the 1830s?

A) National Republicans who opposed the Adams-Clay American System and opposed Jacksonian Democrats in the 1828 election and the 1830s.
B) National Republicans who supported the Adams-Clay American System and politically opposed Jacksonian Democrats in 1828 and the 1830s.
C) Jacksonian Democrats who supported Andrew Jackson and the Democrats in 1828, but who fell out with the Democratic Party in the 1830s because of the party’s opposition of the Adams-Clay American System.
D) National Republicans who opposed the Adams-Clay American System and opposed the party’s antislavery position.

ANSWER
Answer: B