my mom has fine, thin, 3a/b hair that she blowdries straight. (i've been trying to get her to go natural for years.) my dad has thick, 3b/c hair that's gotten straighter as he's gotten older, veering more towards wavy 3a territory. (he also brushes it down.) one of my sisters is a 3c that relaxes, my other sister is a 3a/b that flatirons. i'm in the middle texture-wise, and the only one us who does the wash-and-wear thing. they always tell me they can't wait to see what i look like after they take a flatiron to my head. no thanks....
3B corkscrews with scatterings of 3A & 3C.