The correct answer is: B. created.
The word “created” is the most appropriate word to fill in the blank because it means “to bring into existence.” In this case, the vacancy was created by the dismissal of the superintendent.
The other options are not as appropriate because they have different meanings. The word “made” means “to produce or create something.” The word “caused” means “to bring about something.” The word “generated” means “to produce something.” The word “procured” means “to obtain something.”
In this case, the vacancy was not produced, brought about, or obtained. It was created.