The answer is D. All of the above
I wanna say the answer to this is dream let me know if i'm right:)
There were no regulations in the meatpacking industry, they were paid poorly and there were no repercussions in acting as they did.
A two year old can memorize faces, colors, social emotion, words and movement. They can actually memorize a lot for their small age. Of course they can't remember big details and such but they still can recognize small details.