Choose the correct answer from the list below. Not all of the answers will be used. -______________ is/are elongated sequence(s) that stabilize(s) RNA.
A)poly(A) tail B)methylation C)alternative splicing D)spliceosome E)U2 and U6 F)U4, U5, and U6 G)spliced H)translation I)RNA editing J)GU K)ribozyme L)RNA polymerase I M)ATP