If the padCharacter is omitted from the syntax of the padLeft or PadRight, the default is . . . . . . . .

Space
*
/
?

The correct answer is: Space.

The padCharacter is a character that is used to fill the empty space on the left or right side of the string. If the padCharacter is omitted from the syntax of the padLeft or PadRight, the default is a space.

The other options are not correct because they are not valid characters for the padCharacter.