When setting AF area mode viewfinder on my D3500, I can only chose 2 options out of 4: single-point AF and auro-area AF. The remaining two: dynamic area AF and 3D-tracking are gray and the camera says they can't be chosen in this mode. This remains so in all MASP modes. What could be blocking the menu?
They're all available here: https://youtu.be/CmO1JAGi9Ek?t=4776