In Contemporary Democratic Politics, Parties Engage in All but Which

In contemporary democratic politics, parties engage in all but which of the following activities?

A) Parties out of office join the deep state to resist the governing party
B) Parties recruit and screen candidates for public office, from local election officials to president of the United States.
C) Parties "keep each other honest," since each party has a political interest in exposing corruption, deception, and abuses of authority by its opposition.
D) Parties give political leaders reliable bases on which to build support for their programs in the legislature and among the general electorate.