B ) The length is more than a page; the file will be needed to be saved
C ) The change will automatically be saved in the file
D ) It is essential to save the file again to store the change ✅
Explanation:
If the file saved earlier is edited then it is essential to save the file again to store the change Because most of the time the changes have to be saved otherwise when you open that file your changes may be discarded. Sometimes it automatically saves the changes.