Fiona receives an email from her manager, Robert, asking her to meet and discuss a past project. Unfortunately, Fiona is struggling to complete a project that is due that afternoon and replies stating that she is too busy to meet that day. Robert is not pleased with Fiona's refusal to meet him and tells another coworker that he thinks Fiona is very arrogant. Robert is making a(n) attribution of Fiona.

Dispositional attribution

Explanation:

Dispositional attribution seeks to say that the reason for a person's behavior is due to internal behavioural characteristics of that person and not caused by external causes.

from the question, the reason Fiona is too busy to meet is external, that is she cannot meet because she is struggling to complete a task that is almost due. But Robert misunderstanding the situation ends up saying she did not meet with him out of arrogance which is an internal behavioural characteristic.