31. All are true for the enzyme-transition state complex EXCEPT: (A) It is designated as EX. (B) The enzyme stabilizes the transition-state complex more than it stabilizes the substrate complex. (C) The enzyme is "designed" to bind the transition-state structure more tightly than the substrate or product. (D) The energy barrier between ES and EXt is less than the energy barrier between S and Xt. (E) All are true.