Which of the following is a true statement regarding alternate splicing?
A. Alternate splicing permits for an increase in protein diversity by the differential use of exons whereas maintaining a small genome.
B. Protein diversity is enhanced through alternate splicing since exons are removed after transcription and introns are then ligated together and used as templates during translation.
C. Alternate splicing needs the selective transcription of exons and introns by RNA Pol II.
D. Alternate splicing of exons relies on the initiation of transcription from multiple promoters.