053-440

Which of the following is not a valid calendaring syntax element?
A. FREQ
B. BYHOUR
C. RUNDATE
D. INTERVAL
E. BYMINUTE

　　The calendaring syntax does not support an element named RUNDATE.It does not support the concept of specifying a single run date at all.The purpose of the calendaring syntax is to define repeat intervals that will be used to calculate run dates.