This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Biochemistry
Not product of transcriptiona) tRNAb) mRNAc) rRNAd) cDNAe) New strand of DNA 
Select and explain. 
A. ab, B. de, C. cd, D. bd
B: de
Answer: B: de 
Explanation: In transcription RNA is formed from DNA.