A(n) ____ is a predefined value used to signal the end of valid data input in a loop.

The formula used in Excel to add the values in cells B4 and C4 is ________

A) (B4+C4 ) B) #B4+C4 C) =B4+C4 D) B4+C4

A break statement is legal in a while loop, but not in a for loop.

Answer the following statement true (T) or false (F)