Match the Definition with the Term

Match the definition with the term.
-lucid sleep

A) a condition in which patients experience physiological symptoms without obvious organic causes
B) a form of artificial somnambulism in which one goes into a deep trance state
C) a general trait defined as "the aptitude to transform an idea into an act"
D) a tub filled with water and iron filings,featuring metal rods inserted into it with protruding handles onto which patients grasped