how many of santa's reindeer start with d

I believe that there are three reindeer with names starting with the letter D. They are Donder, Dasher, and Dancer. Donder is one of Santa's original reindeer and is often depicted as the reindeer who got hit in the head with a shovel by Santa's wife, Mrs. Claus. Dasher is a swift and agile reindeer who is often tasked with pulling the lead sled on Christmas Eve. Dancer is a graceful and elegant reindeer who is often seen alongside Dasher in the lead sled.