C towards that understanding
No improvement to this sentence is necessary. It makes perfect sense on its own and sounds right. "Either" always takes an "or" else the word wouldn't make sense, as it's meant to contrast binary options.
eg.
I'm either going to eat food or drink water.
The reason is that hamlet couldn't make his mind i hope i was helpful :D
Answer:
Social networks and the different media that collect public opinions lack in certain ways of certain filters that allow avoiding discriminatory, racist, sexist or bullying behaviors against certain racial, ethnic or sexual identity minorities. In this context, these media perpetuate discriminatory behaviors that, endorsed by the majority of those who think about them, end up massifying this type of thoughts, generating enormous damage to the minorities that are attacked, and establishing moral evaluations regarding particular private behaviors that do not affect third parties.