When You Download a File from the Web, ________

Multiple Choice

When you download a file from the web, ________.

A) you should always keep its original filename
B) it is unethical to change its original filename
C) you should always change the file type indicated by its extension to ".txt" to save storage space
D) rename it as something easily identifiable if its original filename is vague
E) it is impossible to change its original filename