Researchers at a major American university plan a 10-year study involving 25,000 adults who will follow their usual lifestyles while they participate in the study. One of the main goals of this particular scientific investigation is to determine lifestyle factors that contribute to stomach cancer. Which of the following activities is likely to be a component of their research efforts?1. Contacting the local news station to report their findings2. Submitting an article describing the results of the study to a peer-reviewed journal3. Posting significant findings at the main researcher's Internet website4. Establishing a place for the subjects to live for the duration of the study