The answer to this question would be: b.)Data should be presented in a clear and organized manner.
The data should be presented in the best way to read it. The original format of the data might be confusing to read. It could be graph or anything that make the reader can understand what point you want to make. Putting the research method also a good idea since the reader might want to verify the research validity before looking the data.
It doesn't have to be presented orally since most of the scientific report will be written.
