When a program runs but gives incorrect output, this is called ? error

Kyle, a receptionist for a building supply company, recently won an award for saving his company money on their phone system. after being presented with kyle's research, the company changed the way in which it made long-distance phone calls and cut their expenses in this area by 75 percent. the new system the kyle's company most likely adopted was wired communications switching stations voip hdtv

How to do this programming flowchart?

Is the process of organizing data to reduce redundancy. a. normalization b. primary keying c. specifying relationships d. duplication