AMH2020 MIDTERM Online with Tegeder

Midterm is live rn, and the window closes soon. How many IDs should I remember or prepare for. There's 5 ID answering and 1 essay prompt. I don't know where to start and I do not know the length needed for the essay. For the essay were supposed to use "IDs" to help as examples, but anyone take it and know how id demanding the essay is going to be? Thanks.