A stream cipher takes one character and replaces it with another character. This output is known as the ____.

What does it mean when you see

# in a cell? A) Your formula is incorrect. B) Your row is not tall enough. C) Your column is not wide enough. D) At least one of the cell references in your formula is pointing to an empty cell.

Every technician should know electrical fire safely

Indicate whether the statement is true or false