A nurse is concerned about the prevalence of tuberculosis among migrant farm workers. Which of the following activities would be best to use when implementing tertiary prevention?

Use skin tests to screen migrant health workers for tuberculosis infection.

Provide education about the prevention of tuberculosis to members of the migrant community.

Initiate directly observed therapy (DOT) for tuberculosis treatment.

Administer purified protein derivative (PPD) to contacts of those with tuberculosis.