According to Mendel’s law of dominance, when considering a monohybrid cross between two heterozygous individuals (Rr x Rr), we can expect the phenotypic ratio of the offspring to be 3:1. This means that 75% of the offspring will have the dominant phenotype (red flowers) and 25% will have the recessive phenotype (white flowers).
Therefore, the correct answer is:
A 00 (indicating that 25% of the offspring will have white flowers, which is the correct interpretation of the question in relation to the options given).