In the end, we will remember not the words of our enemies, but the silence of our friends.

The correct answer for this question is this one:
The statement signifies that the bad things that other people talked about you, and eventually you got hurt, you can consequently forget that person together with what they say.But if your Friends are silent when you need their help, need someone to stand by you and speak up in your support that is a hurt that you can't forget. 
Hope this helps answer your question and have a nice day ahead.