The correct answer is B.
Situational attribution takes place when the consequences of a specific attitude or behavior are related to external characteristics rather than assumed by the person who performed the action.
In the example presented, options A, B and C refer to decisions taken by Bella. But in option B, the failure in the test is attributed to a decision made by a third person, Edward, which in turn affected Bella's results. Therefore, in B, the negative consequences are attributed to external forces instead of blaming Bella for them.
