Answer:
Cruel acts.
Step-by-step explanation:
The word "atrocity" means something that is an outrageous, extremely cruel, or violent act. It is used to refer to the act of doing something so horrendous or bad.
The "atrocities" as asked in the question is the plural form of the noun "atrocity". It is used to talk about any actions that are deemed extremely evil. Thus, the correct answer is the second option.