Interested in Language
The prosecutor, who until recently ............ leading one branch of a major and ongoing corruption investigation before being removed from his post, has submitted a legal challenge to his reassignment to the Bakırköy Courthouse.
B) has been
The prosecutor was removed from his post. Therefore the answer is, I think, (A) was. Is "has been" OK too? Thanks.
A is correct. B is incorrect. "Had been" is possible.