Explanation: a bird bird comes and takes a massivsh1t on your head theres an awsome action fight you throw it out a window and they all lived happaly ever afrter exept the bird
D.) exposition. The exposition introduces the characters, setting, plot, prior events, etc.
It should be proofread the draft cuz after that u should edit the draft
Anything which is not stable (unlikely to move) is unstable.