Are there any feature you can discern from this picture that confirm its a 96? since the original poster clearly states its a 99a only one of you are wrong.
No CITV (soft edit: nvm you couldn't see the CITV anyway at this angle even if it was a 99/99A)
No ERA (or whatever type of add-on armor) on the turret roof
The muzzle brake on the 99/99A is more of in the 'middle' of the gun while muzzle brakes of other tanks in the image (including another one with RWS mounted) are closer to the front which is another characteristic of 96/96A
Turret geometry (which angles more 'inward' after the about commander's hatch to the turret rear) does not match that of the 99A
Again, assuming they are all identical tank 'types', then the tank behind the one in the image has hull ERA layout much more in line with 96A, not to mention that the lower glacis profile is almost a 100% giveaway
No laser APS, which is arguably symbolic of the 99/99A, and if it was there then it would easily be seen at this angle on not only the tank in the photo, but also the other tanks in the background; however, none of them have it
E: Also placement of other sensors on the turret, but that's not as easy to tell ofc