During rna processing a(n) is added to the 5' end of the rna.
(a)-3' untranslated region
(b)-a long string of adenine nucleotides
(c)-5' untranslated region coding segment
(d)modified guanine nucleotide

The correct answer is (d)modified guanine nucleotide.

Explanation:

When the transcription process is finished, the guanine cap is added to the 5' end of the RNAm so it can be recognized in the cytosol and not scrapped. On the other hand, a long strand of adenines or Poly A tail is also added but to the 3' end, for the same purpose.

rain is the best answer

a=c and then d= c because of the band so you get ac/dc and you add them together you get sound waves