Based on the anti-sera reactions of anti-C anti-D anti-E anti-c anti-e as positive, which of the following is the most likely genotype?

The presence of the specific anti-sera reactions—anti-C, anti-D, anti-E, anti-c, and anti-e—all being positive suggests the individual has a complex Rh genotype. In the Rh blood group system, the combinations of alleles can lead to the expression of certain antigens on the red blood cells.

The Rh genotype R1R2 corresponds to the alleles inherited from each parent, with R1 coding for the D antigen and also conferring the Cc antigens, and R2 coding for D and the ce antigens. This means that if the individual is positive for anti-D, anti-C, and anti-E, it implies the presence of the D, C, and E antigens, suggesting a genotype that contains alleles for these antigens.

R1R2 would provide two different alleles where R1 carries D, C, c, and E, while R2 contributes D, e, and ce. Having a combination of these alleles means there is a higher likelihood of expressing both C and E antigens, making the presence of anti-C and anti-E antibodies understandable, as these antigens are expected based on the genotype of R1R2.

The other options either don't account for the correct