Contemporary Presidents Frequently Use Popular Mobilization and Executive Administration to Achieve

Contemporary presidents frequently use popular mobilization and executive administration to achieve their goals because:

A) these strategies give the president the opportunity to work directly with members of Congress from both political parties
B) these strategies almost never fail in producing the exact outcome the president wants
C) America's system of separated powers makes party support an unreliable presidential tool
D) the Constitution gives the president almost no other way to pursue political change
E) the Supreme Court has ruled that presidents are no longer allowed to draft legislation and work directly with members of Congress to pass it