Which Observation Would Best Contradict the Notion of Genetic Determinism

Multiple Choice

Which observation would best contradict the notion of genetic determinism?

A) Many genes show accelerated evolution in humans and chimpanzees.
B) Only a single protein variant is produced from a particular gene.
C) Monozygotic twins diverge in their appearance as they age.
D) Analysis of the Neanderthal genome shows that they likely had red hair.
E) The FOXP2 gene is involved in vocalization in both humans and birds.