Hotspot based on variable

Hi everyone, 

I have not worked extensively with variables.  Here is what I am trying to do.  At the beginning of my module, the user specifies a value for a variable (user location). Later on in the module, they need to click on 1 of 10 hotspots based on what they have specified as their location.  I want an error message if they have selected the wrong hotspot. 

 

Can anyone help?

 

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