Larry and Ira Are Brothers Who Are Two Years Apart

Multiple Choice

Larry and Ira are brothers who are two years apart in age. Larry went to one public school for his grade school years, but before Ira could go to that school the district underwent a rezoning. Ira, therefore, ended up going to a different school with less-qualified teachers and fewer resources. As a result, Larry tended to perform much better in school than Ira did. This example demonstrates the influence of

A) ​active gene-environment relationships
B) ​niche-picking
C) ​nonshared environmental influences
D) ​asynchronous environmental genotypes