Which of the following propositions is most consistent with the fundamental assumption held by party theorists that part

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Which of the following propositions is most consistent with thefundamental assumption held by party theorists that parties areessential towards reducing the costs of election for individualcandidates?
A) Party members delegating agenda control powers to partyleaders
B) Party leaders delegating to party members the task of partyloyalty
C) Party leaders delegating agenda control power to seniorcommittee members
D) Party members delegating agenda control powers to loyalideological extremists
E) Party members delegating the responsibility of ``branding''the party to national presidential candidates