The stringexpr1 and stringexpr2 arguments of the InStr function are optional

Case based critical thinking ? Case 13-3 ? Thomas is working on reference forms and form fields. He wants to use event handlers that can respond to user actions within a form. He uses theelement.onchangeevent handler. Identify the description of the event handler Thomas has used.

A. Theelementhas received user input B. The value ofelementhas been modified C. Theelementvalue is invalid D. The formelementhas lost the focus

You can get the big picture for the files stored on all the devices connected to your computer by using ____.

A. Internet Explorer B. Private folders C. Search D. File Explorer