Final Answer:
Darla is using (C) Dispositional attribution.
Step-by-step explanation:
Dispositional attribution involves attributing someone's behavior to their internal characteristics or personality traits rather than considering external factors. In this scenario, Darla assumes that Todd's failure to show up at the animal shelter is due to his lack of concern for animals, indicating a judgment based on his personal characteristics rather than considering any potential external reasons for his absence.
Darla's immediate conclusion, without considering other possibilities or external factors that might have caused Todd's delay or absence, aligns with the concept of dispositional attribution. This attribution suggests a tendency to attribute behavior to inherent traits rather than examining situational influences.