Which of the following statements is false about HTTP behavior?
A. When the size of the uploaded or downloaded file or the size of the content obtained through the POST operation reaches the block threshold, the system blocks the uploaded or downloaded file or POST operation
B. When the size of the uploaded or downloaded file or the size of the content obtained through the POST operation reaches the alarm threshold, the system generates a log to notify the device administrator and block the behavior
C. You can set an alarm threshold and a block threshold to limit the size of the upload file if file upload is allowed
D. The POST method of HTTP is commonly used to send information to the server through web pages