19. There is said to be a short circuit when A. one part of a parallel circuit has a very low resistance and almost all the current will flow through this part and very little current will flow through the other part. B. one part of a closed circuit has a very low resistance and very little of the current will flow through this part and almost all the current will flow through the other part. C. one part of a closed circuit has a very low resistance and almost all the current will flow through this part and very little current will flow through the other part. D. one part of a parallel circuit has a very low resistance and very little of the current will flow through this part and almost all the current will flow through the other part.