What happened to the party demographics at the end of the New Deal coalition and the beginning of dealignment?

a. Southern whites, blue-collar workers, and religious conservatives switched to the Republican Party; minorities became more loyal to the Democrats.
b. Southern whites, union families, and minorities switched to the Republican Party; academics and upper-middle-class professionals joined the Democrats.
c. Academics and upper-middle-class professionals began to join the Republican Party; southern whites, union families, and lower-income voters became Democrats.
d. Union families, minorities, and academics switched to the Republican Party; upper-middle-class professionals and higher-income voters joined the Democrats.

a