In Recent Years, How Have Congressional Party Leaders Sought to Augment

In recent years, how have congressional party leaders sought to augment their formal powers?

A) fundraising for members, including the use of leadership political action committees (PACs)
B) limiting campaign spending to focus resources on the administrative and intellectual core of the party organization
C) setting affirmative action quotas on their leadership and membership
D) encouraging members to neglect their constituencies
E) building relationships with foreign leaders