________ ensures that a system performs its intended function in an unimpaired manner, free from deliberate or inadvertent unauthorized manipulation of the system.

In the cell reference A1, the number 1 indicates the row heading

Indicate whether the statement is true or false.

Which of the following statements should be used to validate that a number input by the user into a variable namedWidgetsis an integer value?

a. ```While Widgets != Widgets Write “Please enter an integer value:” Input Widgets End While``` b. ```While Int(Widgets) != Widgets Write “Please enter an integer value:” Input Widgets End While``` c. ```Repeat Write “Please enter an integer value:” Input Widgets End Repeat``` d. ```While Widgets > 0 Write “Please enter an integer value:” Input Widgets End While```