When a stack is implemented as an array, the array is empty if the value of stackTop is ____.

What does the InitialDelay property of the ToolTip determine?

a) The amount of time that the tool tip appears while the mouse is over a control. b) The amount of time that a mouse must hover over a control before a tool tip appears. c) The amount of time between which two different tool tips appear. d) The amount of time in which the tool tip is hidden for.

The ________ function removes leading and trailing spaces in a text string.

Fill in the blank(s) with the appropriate word(s).