What kind of documentaries are they (expository, observational, participatory, poetic, etc)?

Comparing

After watching 2 of the following documentaries: 13th (USA, 2016) /Decade of Fire(USA, 2019)/ Where to invade next (USA, 2015) and reading Chapter 3 of “Looking at Movies” (pp.64-74) Write an essay comparing 2 of the documentaries. Consider the following questions:

1. What kind of elements does the director use in order to present the ideas of the documentary film (interviews, b-roll, archival material, reenactments, etc)?

2. What kind of documentaries are they (expository, observational, participatory, poetic, etc)?