... the people in question ate 4/5 of those plants and ... ate any one of the 4/5 plants these people ... plants 1, 2, 3, and 4; another group ate plant 1 ... plant 2; another 3; another 4; heck, another group ate 5 ... 7sage.com/lsat_explanations/lsat-69-section-4-question-09/