Use the following model of a eukaryotic transcript to answer the next few questions. 5' UTR E₁ I₁ E₂ I₂ E₃ I₃ E₄ UTR 3' -When the spliceosome binds to elements of this structure, where can it attach?
A) to the exons B) to the 5' UTR C) to the 3' UTR D) to an adjacent intron and exon E) to the end of an intron