[C.]

The Toronto example less than 20ft across, while the former tenement buildings along St. Marks are closer to 30ft wide. This is why so many on this thread has pointed out that building at this height becomes much more feasible if two lots are acquired rather than one.

If windows were added to the Toronto example then the interior of the building would have to be as thin as a narrow hallway! It will end up being an inefficient use of space just so an architect can earn an A on their capstone.