Who Devised the Dietary and Health Practices That Pollan Describes

Who devised the dietary and health practices that Pollan describes as an extreme example of "America's eating disorder"?

A) Walter P. Chestnut, an artist whose paintings inspired people to eat exotic foods
B) John Harvey Kellogg, namesake of the Kellogg Company that is famous for making breakfast cereal
C) Anna Murkowski, novelist and essayist who wrote a food column in American newspapers for more than 50 years
D) Rick Spicer, a health advocate who lost more than 200 pounds during the time he had a physical fitness show on television in the 1950s and 1960s