Public Approval of the President Is

Public approval of the president is:

A) a difficult measure to understand because it fluctuates so frequently.
B) an inconsistent indicator of whether a president will be reelected.
C) a generally reliable indicator of whether a president will be reelected.
D) an irrelevant measure because it is based mostly on the president's charisma rather than on the president's record of accomplishments while in office.
E) a stable measure that hovers around 50 percent for most presidents and changes only slightly during the president's time in office.