If We Found That Children Were More Similar to Their

If we found that children were more similar to their adoptive parents than their biological parents in rule-following behavior,what could we conclude?

A) Genes are irrelevant for rule-following behavior.
B) Genetic factors play a larger role in rule-following behavior than environmental factors do.
C) Environmental factors play a larger role in rule-following behavior than genetic factors do.
D) There must be a gene for rule-following behavior.