A crime has been committed on a popular college campus. Police have suspicions about who committed the crime, but a professor named William H. Sheldon offers his services. He explains to detectives that by looking at their suspects, he will almost certainly identify the culprit. Which suspect would Sheldon MOST likely pinpoint for the crime?

19-year-old Jacob, who stands 5 ft 4 inches, weighs 120 lbs., and plays chess

18-year-old John, a tall, muscular football player who weighs in at 170 lbs.

20-year-old Leo, chubby at 5 ft 10 inches and 235 lbs., who works in the commissary

21-year-old Austin, chemistry major who is 5 ft 10 inches and weighs about 160 lbs.