Answer:
Mason's lunchtime experience is an example of evocative gene-environment correlations.
Step-by-step explanation:
Evocative gene-environment correlations occur when an individual's behavior calls up (evokes) a reaction from his/her environment.
It is the association between the individual's behavior, which is influenced by his/her genetics, and his/her context (environment), thus the name of the correlation.
In this case Mason's genetically influenced behavior is his grouchy and unhappy attitude which in turn evokes his classmates' avoidance of him.