what is wrong with the following piece of mrna taccaggatcactttgcca?

What is wrong with the following piece of mRNA? TACCAGGATCACTTTGCCA

• A. It contains A.
• B. It does not include an equal number of As and Ts.
• C. It does not include an equal number of Gs and Cs.
• D. It contains T and not U.
• E. It contains too many stop codons

Answer: Option D. It contains T and not U Explanation