Which input type creates a field that is not viewable on the form?

To move from one record to another in a main form, you would click the buttons on the ____ bar at the bottom of the main form.

A. subform B. records C. navigation D. movement

In the following code, what does \w signify?

``` $search =~ / \b ( \w+ es ) \b /x ``` a) It signifies a word boundary. b) It matches any word containing "es". c) It matches any word ending in "es". d) It matches any alphanumeric character.