Your Text Identifies All of the Following as Reasons Why

Your text identifies all of the following as reasons why unsustainable debt may occur except

A) when countries are dependent on one or two key export commodities,and there is a sudden drop in the price of those commodities.
B) when natural disasters occur.
C) when civil conflicts are resolved and a peace dividend occurs.
D) when there are corrupt politicians and practices.
E) when government officials try to buy votes with unsustainable spending.