If you want to search for all files with a particular extension, you can use a(n) ___ to substitute for the name of the files.

A) question mark
B) asterisk
C) ampersand
D) caret

An asterisk (*) is a wildcard character that can be used to represent any combination of characters in a file name. So if you want to search for all files with a particular extension, you can use the asterisk as a substitute for the name of the files. For example, if you want to search for all files with a .txt extension, you can search for *.txt.