All four of the selections below make the claim that vegetarianism is a healthy choice. which of them has the strongest piece of evidence to support that claim? a)the mathematician pythagoras advocated vegetarianism, and the greek philosopher plato described a vegetarian diet as "divinely ordained." b) in 1850, the american vegetarian society was formed by sylvester graham, a nutritionist and the inventor of the graham cracker. the society advocated vegetarianism to promote health. c) in 1987, the american dietetic association (ada) responded to the uptick in meat consumption. this group of nutritionists came out in favor of a vegetarian diet to prevent and treat diseases. d) in 2005, dr. t. colin campbell published the results of a 20-year study, which found that people who ate the most plant-based foods were the healthiest, and that people who ate the most animal-based foods developed the highest rates of diseases.