Which of the following statements least accurately explains our knowledge of how gene number relates to "organismal complexity"?
A. Based on known gene numbers there appears to be an upper limit of approximately 30,000 genes in the many complex genomes.
B. Phenotypic "simplicity" and "complexity" are accurate predictors of gene numbers.
C. The number of genes within the genomes of lower model organisms like the fruit fly and nematode are not orders of magnitude lower than higher animals like mice and humans
D. The difference in gene numbers among plants and animals is minimal.