What are the common three questions one needs to answer in the Results and Discussion part of an academic presentation?
选项：

A:The 'So-what?' question. (Interpret the results with reference to the research question)
B:What are the results? ( Present every aspect and detail of the results objectively with no selection)
C:How did you reach the results? ( briefly summarize the major research steps leading to the results)
D:What are the results? (Present the most interesting and relevant results in a multimodal way if possible)