Which of the Following Best Describes How Political Parties Help

Which of the following best describes how political parties help to keep elected officials responsive to citizens' needs?

A) by reducing tension between Congress and the president when both are from the same party
B) by allowing voters to determine which office holder is responsible for a success or failure
C) by creating a coalition government in which officials of both parties share credit and blame
D) by allowing voters to hold office holders accountable in a collective fashion
E) by creating competition that attracts attention and gets people involved in politics