As it is presented in the passage, the approach to history taken by mainstream U.S. historians of the late nineteenth...

I eliminated answer C because in my book, and in the video, there is no comma separating York and Victoria. In every answer, there is comma separating each choice. This lead me to think that answer C was saying that York and Victoria were arriving at the same time; violating role 1: trains arrive one at a time. Is this just a legit typo? Or is this something that I should lookout for on the actual LSAT?