Translation

Which of the following statements concerning translation is true?
A. the ribosome moves down the mrna in the 3 to 5 direction and synthesizes the protein in the direction of amino terminus to carboxy terminus
b.the ribosome moves down the mrna in the 3 to 5 direction and synthesizes the protein in the direction of carboxy terminus to amino terminus.
c.the ribosome moves down the mrna in the 5 to 3 direction and synthesizes the protein in the direction of amino terminus to carboxy terminus.
d..the ribosome moves down the mrna in the 5 to 3 direction and synthesizes the protein in the direction of carboxy terminus to amino terminus.