Hey,

You can choose maximum three languages from any of the two clusters, You'd choose any two like one can opt for Spanish and German from the first cluster and the other one Korean from the Second. So Maximum You can choose three languages from maximum of two clusters.

Note : First Cluster Contains Spanish, French, German & Russian

Second Cluster have Asian languages - Korean, Japanese, Chinese

Third Cluster have - Persian, Pashto and Arabic

So Maximum of three you can take from any of the two clusters, You can't take 1 language from each, You just have to select maximum of three from any two clusters and minimum 1 as you already know.

Hope that helps!