 Okay, so this question is asking us, looking at the following pictures of a solution of a weak acid and some of them also contain the conjugate base of the weak acid, sodium salt, which solution would have the highest percent dissociation of HA? So that's what we're looking at here. So if you recall, in order to do these types of problems, we're going to have to look at the equation HA H2O minus plus H3O plus, okay? So HA dissociating into A minus is what we're talking about, okay? So what we've done here is kind of put the common ion effect to work, okay? So what we've done is we've added some HA to all of these solutions and some A minus to some of them, okay? So using Le Chatelier's principle, the thought process behind it, if we add A minus to a solution of HA, it should push the equilibrium back this way, okay, and prevent dissociation, okay? So does that make sense? Okay. So what we should be looking at is to see which one has the least amount of dissociation would be the one with the highest amount of A minus present, okay? So let's look for that. So here, zero A minuses, here we have one, two, three A minuses, and here we have one, two, three, four, five A minuses. So if you wanted to say which one of these solutions would dissociate the most due to the common ion effect, this one, yeah, this would dissociate the most, then this one, and then this one, okay, in that order, no questions about that, okay, let's try another one of these pictorial problems in a second, okay?