A cancer institute conducts a 5 year study on 500 randomly selected lymphoma patients who are in remission. The study is designed to determine if eating avocados helps to keep the disease in remission. At the end of the study, the institute concludes that by eating avocados 60% of all lymphoma patients have a better chance of remaining in remission. What is the parameter of the study?

Athe lymphoma patients who remain in remission for 5 years after the study

Bthe lymphoma patients who are in remission from which the 500 are selected

Cthe lymphoma patients who do not remain in remission for 5 years after the study

Dall lymphoma patients treated at the cancer institute over 5 years