Yep I would definitely guess 4a/4b with some little 3c curls mixed in there.
Thick, highly porous 4a hair
CG-Method Products:
Cowash: TRESemme Naturals Nourishing Moisture Conditioner (Silicone-free)
Deep Conditioner: TN mixed w/honey & olive oil
Stylers: Wetline Xtreme Gel, Curls Cream Brulee, SMCES, grapeseed oil