RAG1 and RAG2 are enzymes that control gene splicing on B-cell antibody genes. Which order are segments worked on in the creation of the heavy-chain gene segment?

A) VD spliced together, then J, then C
B) DJ spliced together, then V
C) VJ spliced together, then D
D) VC spliced together, then D, then J
E) VDJ segments are all spliced together simultaneously.