So, I have started reading a bunch of Autobiographies.

[KilgoreTrout]

A couple more to consider... these are more "memoires" than straight autobios.

Me Talk Pretty One Day - David Sedaris (your category C, but very funny).

If Chins Could Kill: Confessions of a B Movie Actor - Bruce Campbell. (your category A but interesting insights into his relationship with Sam Raimi and how unglamorous it is to be a B-grade actor).