After the generation of the RNA would indicate that C. It is controlled after transcription
Now it could also be translation (because that is after the protein is made) - but because your question asks specifically after the RNA is formed (that process is called transcription) that would indicate that your answer is C.
Gene expression is a process that involves synthesis of a final gene product by using information present in a gene. It is regulated at various level to decrease or increase the production of these gene products, known as gene expression control.
Transcription includes formation of RNA molecule from a template DNA strand. Therefore,it gene expression is controlled after the formation of RNA, it is known as controlled after transcription.
Thus, the correct answer to be filled in the blank is option (C).
The evading viruses destroys helper T cells or the CD4+ thus the body can no longer stop some infections. The secondary infections also called opportunistic infections are rampant with people who have AIDS. This is because helper T cells help fight against most infections in the body.