In a fast-food restaurant, the ratio of people eating hamburgers to people eating chicken is 4 : 3. there are 84 people in the restaurant. how many people are eating hamburgers and how many are eating chicken? a. 36 people are eating hamburgers; 48 people are eating chicken. b. 12 people are eating hamburgers; 72 people are eating chicken. c. 48 people are eating hamburgers; 36 people are eating chicken. d. 21 people are eating hamburgers; 63 people are eating chicken.