The following are descriptions of 4 individuals who have been drinking. Rank them from highest to lowest blood alcohol concentration:
a. John (male), who weighs 200 pounds and has consumed four 8-ounce drinks on a full stomach
b. Frank (male) who weighs 170 pounds and has consumed six 8-ounce drinks on an empty stomach
c. Gary (male), who weighs 200 pounds and has consumed six 8-ounce drinks on a full stomach
d. Sarah (female), who weighs 170 pounds and has consumed six 8-ounce drinks on an empty stomach