The Brackett series corresponds to electronic transitions from higher energy levels (n2 = 5, 6, 7, ...) to the n1 = 4 level.
Given below are two statements:
Statement I: Transfer RNAs and ribosomal RNA do not interact with mRNA.
Statement II: RNA interference (RNAi) takes place in all eukaryotic organisms as a method of cellular defence.
In the light of the above statements, choose the most appropriate answer from the options given below: