What Would Enable a Single RNA Transcript to Be Translated

Multiple Choice

What would enable a single RNA transcript to be translated into different polypeptides?

A) The RNA transcript can be spliced more than one way.
B) The coded polypeptide may be modified in more than one way.
C) The length of the RNA transcript tail can vary.
D) Two different genes can produce the same RNA transcript, which will then be translated differently.