Idk the story but im going with D) helpful and inspiring
The first step to preparing for a test is gathering informational sources about the topic or subject. Secondly, you should check these sources' credibility to ensure they are reliable sources of information. Next, you need to gather information from these sources that you will use to study with, this may include taking notes or highlighting the important facts or phrases. Then, you have to study and memorize this information, or you may even quiz yourself to help these facts stick in your mind. Finally, you should put all of these skills together to successfully pass the test.
I would go with, It is necessary to have a list of needed items
Answer: He surmises that ten thousand hours of practise is needed to master skill and be called an expert.