OK. I see what you're trying to do.
Then I think your best option is to build this interaction on a normal slide using interactive objects such as click boxes for the hotspots and you'll also need to employ some variables and a couple of Conditional Advanced Actions as well. The Conditional Advanced Actions will be quite similar and are triggered by clicking on one of a click boxe.
You'll need at least two click boxes. One for each of the correct answer hotspots. You'll need to create a couple of user variables to track whether or not each click box has been clicked (e.g. var_ClickBox1, var_ClickBox2). These variables will have an initial value of 0 and get assigned a value of 1 (as mentioned below) if the click box gets clicked.
Each Conditiional Advanced Action will need an initial clause that sets the value of the variable which tracks the click box status. The first condition statement looks like this:
IF var_ClickBox1 is equal to 0
Assign var_ClickBox1 with 1
The next clause in the Conditional Advanced Action checks to see if the value of the other click box variable indicates that it has already been clicked as well and if it finds both variables set to 1 then it will execute statements to SHOW the hidden image that points to the inconsistencies in the identification. If only one click box variable is set to 1, this SHOW clause never gets executed.
IF var_ClickBox1 is equal to 1 AND var_ClickBox2 is equal to 1
SHOW correctAnswerImage (or whatever you call its Item Name)
The other Conditional Advanced Action is more or less identical to this one but of course it's initial statement sets the var_ClickBox2 variable to 1. The second statement is the same. So once you've done one of these actions, you can just copy it, rename, and change the first statement to assign the other var_ClickBox variable.
If you've never played around with Advanced Actions and variables or Conditional Advanced Actions, then this might be a bit of a stretch for your abilities. But trust me, it's good practice to learn this stuff!