Which Factor Helps Explain the Growing Resistance That Presidents of Recent

Which factor helps explain the growing resistance that presidents of recent years have faced in all their respective roles?

A) the fact that foreign policy dominates their attention
B) the fact that Americans care only about pocketbook issues,which presidents cannot affect
C) the fact that Americans,who have a persistent sense that Congress should be the center of government,are hostile to presidential leadership
D) the fact that Americans have a persistent sense that politicians can do nothing right,which constrains the ability of presidents to lead