The correct answer is “Detailed analysis of the nutrients from typical kitchen waste”. In order to convince the reader about the benefits of composting kitchen waste, the most relevant sentence to include in such research paper would be “Detailed analysis of the nutrients from typical kitchen waste”. This is because, this way, the writer would be presenting evidence of the study or research that is being carried out. The points made in the rest of the options (Information on how to construct a productive compositor system / Personal testimony from a family who composts 90 percent of their waste / Studies indicating an increase in home production of vegetables) would not be relevant to the research paper, since they present too broad examples of the topic.