In the 1950s, Who Were Known as the Shivercrats

In the 1950s, who were known as the Shivercrats?

A) supporters of Governor Alan Shivers's bid for the White House in 1952 and 1956
B) conservative Democrats who voted for Republican presidential candidates
C) liberal Republicans who supported Democrat Alan Shivers's governorship
D) poor rural Democrats who could not afford to buy heating oil because of soaring energy costs
E) conservative Republicans who voted for Democratic presidential candidates