D[8 Pts] Santa Claus - Consider a program with one Santa thread, nine reindeer threads and many elf threads. The Santa thread should rest unless all nine reindeer arrive or three or more elves have problems. Once all nine reindeer call the arrive method, Santa should call the sleigh method. If three or more elves call the helpNeeded method, Santa should call the workshop method. The elves and reindeer do not need to wait for Santa