The answer is : variables
When viewing data entered into a spreadsheet, the columns identify Variable. The variables later can be used on a formula to help you process any sort of data that is implemented within excels' formula system
Goto settings>display>resolution what os is your system? this was for a win 10
The correct answer is A because they cant protect in real time
in order to delete answers from your questions, you have to rate them one star , or at least that's what I do, and then report it and then brainly will determine if it's something that needs to be taken down or not