Answer:
Option B , Jumping Genes
Step-by-step explanation:
Jumping genes are basically transposons that have the ability to move from one location within a genome to other location. These transposons or Transposable elements (TEs) were first discovered by Maize geneticist Barbara McClintock in the year 1940.
For example-
If the transposon changes their location and shift to a position which is adjacent to a pigment producing gene, then the cell would not produce solid yellow color but instead will produce streaked yellow color.
Here in this piece of information, the yellow or blue corn kernals produces spotted kernals and hence this is due to presence of jumping genes
Hence, option B is correct