Which of the Following Correctly Describes Exons and Introns

Multiple Choice

Which of the following correctly describes exons and introns?

A) Both exons and introns code for proteins, but they code for different types of proteins.
B) Exons are coding sections of DNA, and introns are noncoding sections.
C) Exons are noncoding sections of DNA, and introns are coding sections.
D) To code for a protein, both an exon and an intron are necessary.