I'm not too sure which one of these two but its either A or C
It's the nucleus or the nucleolus to be exact which produces rRNA which as a structural component of ribosomes.
Hope i helped!
For the answer to the question above, I believe that <span>the mutation is likely in any type of regulatory sequence.The mutation is probably acting to reduce or prevent transcription initiation.</span>
I hope my answer helped you in some ways.
Answer:
si todo cambia porsue le encanta el cambio
