For context, I have read everything I've found regarding this on JetPunk, and I have been able to turn countries green. However, I'm developing a quiz in which one answer could be correctly attributed to many countries, and when I type it in on preview, only the first country alphabetically out of the bunch will highlight. I added a column to the left of the hints where I put the IDs of every country in the row, separated by a comma.
To anyone who's successfully made a quiz like that, what am I doing wrong?