FRIENDSHIP HELP!!!

So at school I hang around with my three best friends A,B and C. C is my most recent friend but still one of my best friends. A couple of months ago C randomly invited her friends D and E to hang around with us without asking me B or A first. I don’t like D and didn’t even know E but A and B seem ok with them. Then last week, E invited her friend F to hang around with us and I HATE F she’s horrible. And A, B and C hate her too. But A especially, doesn’t want to say anything to F because she doesn’t want to be mean but now I don’t want to hang around there because of D, E and F

Advice?