the famous case of the genain sisters, identical quadruplets all diagnosed with schizophrenia, points out that siblings raised in the same household may experience their environment very differently, a concept called a(n):

one time i was looking at my neighbors screen door to see if the door was open i was squinting like a fool for 10 minutes before realizing he was starring back i then died from embarrassment and am now typing this from the ghost world

i would definitly say b : )