Which of the Following Most Clearly Demonstrates the Influence of Environment

Which of the following most clearly demonstrates the influence of environment?

A) Bill, who was adopted at birth, died at the same age as his biological father.
B) Patty, who was adopted at the age of 2, walks like her adoptive mother.
C) Matt and Jason, identical twins who were separated at birth, are both overweight.
D) Marie and Amy are fraternal twins who were reared apart. Marie has high blood pressure and Amy does not.