[单选题]
The diagram shows a molecule tyqum0 5c8i zgh *h+lo:hat plays an important role in protein s07o3h q6bglbtynthesis.
gbo67l qbh3t0 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