History bears several instances of how ambitions of individuals have ruined countries and brought untold ______________to the people.

The correct option is 3. ’Miseries’ is a plural form of noun and it is the only word that fits the blank appropriately.

Miseries mean feelings of great physical or mental distress or discomfort.

Heartaches are the emotional anguish or grieves, typically caused by the loss or absence of someone loved.