Question

penicillin was widely used to:
cure smallpox during the nineteenth century
treat soldiers during World War 2
manager diabetes during the twentieth century
fight the bubonic plague during the Middle Ages

Answer 1

Penicillin [antibiotic] was widely used to:
B) treat soldiers during World War 2 (1940s-current)

*smallpox is a virus and not affected by antibiotics
*diabetes is not an infection, therefore antibiotics won't play a role
*plague and middle ages are CENTURIES before discovery of antibiotics