Which stage in the process of making a protein should be inserted into step 4?

1. dna in the nucleus contains information to code for a protein.
2.rna stores an exact copy of the dna sequence and then travels from the nucleus into the cytoplasm.
3. rna reaches the ribosome.
4.
5. the protein is then transported to its proper destination.

a.
a different kind of dna decodes the information and disassembles the building blocks of the protein.

b.
a different kind of rna decodes the information and assembles the building blocks of the protein.

c.
the same kind of dna decodes the information and disassembles the building blocks of the protein.

d.
a different kind of dna decodes the information and assembles the building blocks of the protein.

i think it is d, if i am incorrect can someone correct me and explain the answer?