C.
Just got them. So far, they're softer, thicker, and better than original cups. Time will tell, but it's promising so far. Not sure if it's because it's thicker and has more cushion, but it definitely fits better (if you like your ears cupped inside the cushion for better sound isolation).
![Replacement Ear Pads For Sony WH1000XM4 Over-Ear Headphones](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
Replacement Ear Pads For Sony WH1000XM4 Over-Ear Headphones