You Have Carried Out a Process of Nucleic Acid Hybridization

You have carried out a process of nucleic acid hybridization with the DNA from a eukaryotic gene as the target and mRNA as the probe.You observe a region where the RNA and DNA pair,a middle region where the RNA and DNA do not pair,and a final region where the RNA and DNA pair.From this result,you can infer there is/are _______ exon(s) and _______ intron(s) .

A) 1;0
B) 1;2
C) 2;1
D) 2;2
E) 3;1