29.Which one of the following statements is wrong? (A) The perception of pain arising from a noxious stimulus starts with conversion of the energy of the stimulus into an electrical signal in the primary afferent neurons innervating the site of the stimulus. (B) This process of energy conversion is called transduction. (C) The three general modalities of noxious stimuli that impinge on the body are chemical, thermal, and mechanical. (D) Specific proteins or groups of proteins called transducers underlie the process of transduction. (E) All of the above are correct.