Theres a spot on my back that itches that I can't reach.
You should be able to reach any spot. I know I can.
A) You have short arms.
B) You have fat arms and the fat impedes your range of motion.
C) You are fat and only extra long arms could comfortably reach around, but since you have only average arms you cannot.
D) You have no hands or arms.
E) All of the above.
Which is it?