The figure summarizes the observation following a cross between two haploid strains of Neurospora crassa having alleles A and a, respectively.

The following statements were made:

A. In 'I', segregation of alleles occurred in Anaphase II.

B. Crossing over between the centromere and the gene occurred in 20% of the meiocytes.

C. With reference to the two non-recombinant parental chromosomes, there are 6 different ways by which they can orient themselves at the equatorial plate.

D. The gene is 20CM away from the centromere.

Which one of the following options represents a combination of all correct statements?