The ScreenTip button is located in the ________ dialog box

To ________ cells on a layout is to combine them into one cell

Fill in the blank(s) with correct word

Which variable is the loop control variable?

Assume that all variables are of type int and that y and z are initialized to 0. ``` for (int i = 0; i < 100; ++i) { cin >> x; y += x; if ( x % 2 == 0 ) ++z; } ``` a. i b. x c. y c. z