Please help I can’t figure it out I really need help

Each main point should be noted in an outline as a roman numeral o a capital letter a number 1 any of the above none of the above

This device blocks an opening along the base/floor of stairs or other walking or working surfaces where materials or body parts might otherwise inadvertently fall through. it should be 4 inches high, with not more than ¼ inch clearance above the floor

What questions should readers ask about the exposition of a story?