Why is it that one cannot identify the location of internal organs, although joints and bone location can be identified?

A) The internal organs have no proprioceptors like joints, bones, and muscles.
B) Internal organs have no pain receptors.
C) Although internal organs have some receptors, the information is not interpreted by the brain.
D) Internal organs have no receptors of any kind.
E) Sensory information from internal organs is processed by a different part of the brain than the joints, bones, and muscles.