33. Iron-response element (IRE). Which of the following descriptions is not correct? (A) IRE consists of multiple stem-loop structures. (B) The affinity of the IRE-binding protein for the IRE is altered by ion binding. (C) The IRE-binding protein exhibits low affinity when its iron-binding site is full. (D) The IRE-binding protein exhibits high affinity when its iron-binding site is not full. (E) The IRE-binding protein destabilizes the mRNA.