Which Is an Example of an Evocative Heredity/environment Relationship with a Child

Which is an example of an evocative heredity/environment relationship with a child genetically prone to be grumpy?

A) A child is temperamentally grumpy,so everyone starts yelling at him,and he gets even grumpier.
B) A mother takes special care to be kind to her grumpy child.
C) A child is genetically prone to be grumpy,so he always hits other children.
D) A child shares his biology with his parents,so his parents are grumpy.