What type of hair does this girl have??

I'm very conflicted when it comes to trying to figure out whether her hair is a 4a. 4b or a 4a/4b mixture, what exactly would you call it?

2 Answers

it looks like a mix of 4a and 4b. 
It looks completely 4a to me, only reason I think it would look a little 4b is because she has xotton textured hair which will automatically add some frizz to curls and take away definition. I could be wrong but she's definitely either 4a, or 4a/4b.