{ 1 } - natural evils (like diseases and floods) -- which are evils caused by impersonal objects and forces.
{ 2 } - moral evils (like cruelty and hatred) -- which are evils caused by the wrongful actions of persons.
{ 3 } - both of the above.
{ 4 } - none of the above.

The problem of evil deals with both types of evil. Sometimes the two types overlap. Poverty, for example, might be caused both by natural forces (such as the scarcity of raw materials or a hurricane's destructive force) and by wrongful actions (such as evil social structures).

Particularly difficult is apparently gratuitous evil -- evil that seems to serve no purpose in the larger scheme of things.