Split genes include

The correct option is C
Both A and B
$\text{Split genes}$

• In eukaryotes, both introns and exons are present in a gene.
• Only exons code for protein and introns present in between them do not code for protein. This arrangement is called split gene.
• During the formation of a functional mRNA molecule, the introns are spliced off.

Final answer:

d) Both a and b