Without the Sensory Feedback Carried by the Somatosensory Nerves of the Arms,human

Multiple Choice

Without the sensory feedback carried by the somatosensory nerves of the arms,human neurological patients,such as G.O.,have difficulty

A) swatting a fly.
B) maintaining a constant appropriate level of manual muscle contraction.
C) adjusting the output of the muscles of their arms to compensate for unexpected external disturbances (e.g., somebody brushing against an arm) .
D) all of the above
E) both B and C