Answer:
B) Each numeration should be indented differently.
C) Sub-subpoints are indicated by Arabic numerals.
E) Main points are indicated by Roman numerals.
Step-by-step explanation:
For the elaboration of an academical writing (as an essay or a paper could be), teachers usually require the student to write an outline before creating the main document, in order to identify and correct any kind of mistake that could be present in terms of content and its organization. This outline is a useful tool to arrange information according to its relevance, and has a predefined format such as numeration of ideas and indentations.