The Agile Controller synchronization methods include manual synchronization and automatic synchronization. Which of the following statements about synchronization methods are correct?

The Agile Controller synchronization methods include manual synchronization and automatic synchronization. Which of the following statements about synchronization methods are correct?
A . Agile Controller can only use one synchronization method to avoid mutual interference
B . The first time the Agile Controller is synchronized, manual synchronization must be used, and then automatic synchronization can be used.
C . The synchronization time point for the automatic synchronization of the Agile Controller can be modified
D . Agile Controller manual synchronization can only be used three times a day to prevent artificial increase in network load

Answer: C