Suppose if the recombination frequency between two gene present on same chromosome 'q' and 'r' is 13%, 'p' and 'r' is 2%, 'q' and 's' is 4%, 'q' and 'p' 15%, and 'r' and 's' is 17%. Based on these frequencies, identify the correct sequence of genes on the chromosome. A/ p, q, r, s B/ p, r, q, s C/ r, P, q, s D/ s, q, P, r.