Regarding TRNA Structure, Which of the Following Statements Is Correct

Multiple Choice

Regarding tRNA structure, which of the following statements is correct?

A) The nucleotide sequence, CCA, is always present at the terminus of functional tRNA molecules.
B) There is appreciable secondary structure in native tRNA molecules.
C) An unusual nucleoside called pseudouridine, in which there is a carbon-carbon linkage between ribose and uracil, is almost always present in tRNA.
D) All of the above.
E) None of the above.