Answer:
The correct answer is conventional.
Step-by-step explanation:
Vandalism refers to an infraction that comprises the deliberate deterioration of private or public property. Conventional reasoning signifies the tendency of adolescents and adults to justify the activities of other human beings with respect to society's expectations and ethics.
In the given case, Joseph is at the conventional level of moral reasoning in which he is thinking about the fact that vandalism is wrongdoing that should be prevented in the school in order to sustain the status of the school. His worry is for society.