By the Early 1980s, Judicial Candidates in Texas Made a Mass

By the early 1980s, judicial candidates in Texas made a mass change in their campaign strategies. What was that change?

A) Candidates began making a switch from the Republican Party to the Democratic Party.
B) Candidates began running with running mates to increase their chances of victory.
C) Candidates began selecting a party to align with, unlike when they used to run as nonpartisan candidates.
D) Candidates began making a switch from the Democratic Party to the Republican Party.