Which of the Following Does NOT Accurately Describe Events in the Movement

Which of the following does NOT accurately describe events in the movement of mRNA from the nucleus to the cytoplasm?

A) Processed mRNA transcripts are recognized and transported to the cytoplasm through nuclear pores.
B) Processed mRNA transcripts diffuse passively down their concentration gradient across the nuclear membrane.
C) Nuclear pores are large protein complexes that traverse the nuclear membrane and control the inflow and outflow of macromolecules.
D) Primary transcripts must be processed to mRNA before leaving the nucleus.