Excel includes predefined headers, and you cannot create your own headers.

A(n) _________ query is a query that displays an input box that asks for criteria each time it is run

A) parameter B) update C) union D) append

Write a function definition for a isDigit function that takes one argument of type char and returns a bool value. The function returns true if the argument is a decimal digit; otherwise it returns false.

What will be an ideal response?