The majority of participants did not correctly classify the AK47 depicted in the survey post. Only one participant correctly classified it as the AKM N.
It has a stamped receiver, the gas vents are on a radial along the edge of the gas tube to gas port housing interface, the dust shield has the characteristic ridges on top. Just with that information alone, we can classify it as an AKM.
However, what makes it an AKM N is the presence of a side rail for mounting day or night optics.