[单选题]
The diagram shows a molnzp/qso 88s 1jeculry*(n6.rdrk(8-m+ix n tg28ctci ddf e that plays an important role in protein synthesis.
ng crix6*8yc(-rn2.td8fdrdit+k(m Which is found at X?
I. Uncoiled DNA
II. Amino acid binding site
III. RNA nucleotides
A. II only
B. I and II only
C. II and III only
D. I, II and III