[单选题]
The diagram shows a molecule that playwq64,ejts; gwr .o v7as an important role in protein synthesis.kd8kg7fb):j w)dk:jb 7wk8gf 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