Read this excerpt from "Edward Jenner and the History of Smallpox and Vaccination.”

Although he received worldwide recognition and many honors, Jenner made no attempt to enrich himself through his discovery.

Which detail best supports this claim?
Jenner devoted more time to the vaccine than to his private practice.
Jenner was awarded money over a period of years for his discovery.
Jenner worked to have the vaccination replace variolation.
Jenner tried his hardest despite public opinion of him.