6404. The prisoners of war were subjected to bestial atrocities.

✅ The correct answer is option C.
Hardships : severe suffering or privation.

Punishment : the infliction or imposition of a penalty as retribution for an offence.

Cruelties : cruel behaviour or attitudes.

Jobs : a paid position of regular employment.

Atrocities : an extremely wicked or cruel act, typically one involving physical violence or injury.

Synonym of Atrocities is Cruelties