Greg is preparing a speech about racism in america. he has written down a few examples to illustrate his points. which of the following would be the least effective choice for greg to include in his speech? a. a white person waits to ride the next elevator when a person of color is on it b. a teacher travels each year to visit family in south africa c. a white woman clutches her purse as a black or latino person approaches d. making the statement: “i’m not a racist. i have several black friends.”