The audi 5000s was investigated because of reported instances of unintended acceleration. the investigating body concluded that the acceleration was not a result of a system malfunction but was due instead to driver error. however, they also said that the awkward placement of the brake and accelerator pedals was the primary contributor to these driver errors. by designing this part of the 5000s in an ergonomically inefficient manner, audi ignored which of the four basic rights of consumers?