in which dialogue, Is there a mistake? B ) 66 Arloan't access to the intemet from my PC B: What do you mean? A: I mean, there isn't a connection sign A: Having online friends is dangerous. B: What do you mean? A: I mean, some people pretend to be younger when online, D) 66 66 A: You must create online identities to log in B: What do you mean? A: I mean, limit your Internet access A: Avoid using dangerous sites. B: What do you mean? A. I mean, use safe websites.​