Which word in the following sentence is the direct object?

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

4friends evenly divided up a nn-slice pizza. one of the friends, harris, ate 11 fewer slice than he received.

Select all that apply. because the length of his story is limited, short story writers typically: