Answer:
?
Explanation:
We have a set of wildcard characters. And they are the? and *. We use * for multiple characters, and ? for the single character. / is used for an escape sequence. like if we want to use it? as a symbol and not as wildcard characters, then we will make use of the /. And suppose we want to find all the words that are of type ?ard like the card and hard, then we will make use of ? which means that place can be replaced by one character.
