The conclusion of the passage is based on which of the following assumptions? A. Nonresidential elections are less worthy of study than are presidential election. B. People of voting age who fail to vote in presidential elections do so to express their dissatisfaction with the candidates. C. A presidential candidate need not receive votes from a majority of those who actually vote in order to win an election. D. The ratio of voters to nonvoters among those of voting age indicates the relative popularity of the competing candidates. E. The principle of majority rule has never been correctly defined.