21. According to the text, what is the worst-case scenario for the authors of the study?According to the text, the worst-case scenario for the authors of the study is the accidental deletion or malicious falsification of ballots from the 1.42 million Californians who could vote on electronic touch-screen machines.
Their worst-case scenario is the accidental deletion or malicious falsification of ballots from the 1.42 million Californians voting electronically - 9.3 percent of the state 's 15.3 million registered voters .