"At the fair there are also stands that sell candy."
Translation:Op de kermis zijn er ook kraampjes die snoep verkopen.
On Friday, May 1st, 2015 at 10:39PM EDT, this question finished my Dutch tree! :)
You use die if the noun it's referring to takes de as a definite article/determiner or it's a person, and dat if it's a het noun.
In this case, die is referring back to (de) kraampjes.
For more information, please see http://www.dutchgrammar.com/en/?n=Pronouns.rl02 and ss.