Which Statement Is the Most Accurate Description of How Phenotypes

Which statement is the most accurate description of how phenotypes arise based on underlying genotype?

A) When a trait is influenced by multiple genes, extreme phenotypes will appear more frequently than average phenotypes.
B) Most complex phenotypes arise from a simple dominant-recessive pattern.
C) When a trait is influenced by a single gene pair, a large number of phenotypes will be evident in the population.
D) Most complex phenotypes arise from polygenic patterns rather than a single dominant gene.