Pelagra was believed to be an infectious disease promoted by unsanitary conditions. It was common in sanitariums and orphanages but only among the patients and not the staff. A study of the diets showed that sufferers of pelagra rarely ate a quality proteins such as eggs milk and meat introduction of these proteins into the diet cured Pelagra.
Which of the following experiments would support a belief that a lack of protein causes pelagra
Given foods that contain Vitamin C to animals with Pellagra
Reducing the intake of high quality proteins in healthy animals and monitoring the results
Inaccurate in elder individuals with secretions from pelagra skin lesions
Having healthy animals live in an unsanitary environment
Moving animals with pelagra to a sanitary environment