Which of the Following Factors Contributed to Addition of the Prescription

Which of the following factors contributed to addition of the prescription drug benefit to Medicare in 2003?

A) Democrats broke the Republican filibuster and won a close vote for the bill, which the president then signed.
B) Drug and insurance companies were limited in their lobbying efforts due to the struggling economy.
C) Elderly voters and the AARP backed the Republican plan and helped to push it through Congress.
D) Republican president George W. Bush promised to help seniors with rising drug costs and persuaded the drug companies to lower their prices.
E) Young voters, worried about the rising costs of taking care of their parents, created an advocacy group to lobby for the prescription drug benefit.