Assume that genes C and D are located on the same chromosome.On one chromosome alleles C and D are found,while the homologue contains alleles c and d.Which of the following would be an example of a recombination event?

A) alleles C and D together on one chromosome
B) alleles c and d together on one chromosome
C) alleles C and d together on one chromosome
D) alleles c and D together on one chromosome
E) both alleles C and d together on one chromosome and alleles c and D together on one chromosome