Several genes in humans in addition to the ABO gene (I) give rise to recognizable antigens on the surface of the red blood cells. The Rh marker is determined by positive (R) and negative alleles (r) of gene R, where R is completely dominant to r. The presence of M and N surface markers are controlled by two codominant alleles of gene L (LM and LN). For each mother-child pair, choose the father of the child from among the males in the right column. (Assume that all mothers and fathers are HH.)