4. An article in a journal that describes the usage of statistical dataset in informing governmental social policy Primary Tertiary Secondary Both Primary and Secondary 5. A journal research paper that gives revision of the existing research studies into the cause of alcohol in liver cancer. This is done before it reports the findings of the new study, undertaken by the author of the paper Both Secondary and Tertiary Primary Secondary Tertiary 6. A Researcher presenting in a conference, the temporary findings about an ongoing study in exploring the behavior of students at schools conducted recently Primary Secondary None of these Tertiary