My hair shaft is straight (brazilian blowout) but the roots are like this. My mom says I'm 3c is she correct?
I think so. Yours might be a range like mine... I have 3b in some areas.
Looks like it. You could be 3b also. :)
Looks more 3b to me, but hard to tell just yet. After a little more growth, it'll be easier to tell.
I'd let it grow out and let the curl fully develope before saying 3c.