Alan is competing in a speed-eating contest. he ends up winning the contest, beating four other competitors. the competitors grumble that he only won because he had the smallest portion of food to eat. what kind of attribution has alan's competitors assigned to explain his success? a. stable internal attribution b. unstable internal attribution c. stable external attribution d. unstable external attribution

The correct answer is D) unstable external attribution. Attributions are the inferences people make about the causes of events. There are internal/external and stable/unstable attributions. 
When people make a stable attribution, they infer that an event due to stable factors. When making an unstable attribution, they infer that an event or behavior is due to unstable, temporary factors.
For example, Lisa gets a F on his sociology term paper. If he attributes the grade to the fact that he always has bad luck, it is a stable attribution. If he attributes the grade to the fact that he didn’t have much time to study, it is an unstable attribution.

Iam not sure sorry