Which statement about the A, P, and E sites in the ribosome is correct?

Which statement about the A, P, and E sites in the ribosome is correct?

• A. A site accepts aminoacyl-tRNA; P site holds the growing polypeptide; E site is where tRNA exits.
• B. A site holds the growing polypeptide; P site accepts aminoacyl-tRNA; E site is where tRNA exits.
• C. A site binds mRNA while P site and E site both bind tRNA.
• D. E site accepts aminoacyl-tRNA; A site holds growing polypeptide; P site is where tRNA exits.

Answer: (A)