The odds of winning any major lottery jackpot are extremely slight. However, the very few people who do win major jackpots receive a great deal of attention from the media. Thus, since most people come to have at least some awareness of events that receive extensive media coverage, it is likely that many people greatly overestimate the odds of their winning a major jackpot. Which one of the following is an assumption on which the argument depends? ['Very few people other than those who win major jackpots receive a great deal of attention from the media.', 'If it were not for media attention, most people who purchase lottery tickets would not overestimate their chances of winning a jackpot.', 'Most people who overestimate the likelihood of winning a major jackpot do so at least in part because media coverage of other people who have won major jackpots downplays the odds against winning such a jackpot.', 'Becoming aware of individuals who have won a major jackpot leads at least some people to incorrectly estimate their own chances of winning such a jackpot.']