I think that the awnser is : " B. Adverb" but not so sure
Formal principle because formal means "used to be" so the ex principal would be the FORMER principal. he's not principal.
Answer:
succeeded
Explanation:
Definition: To come next in time or order
To replace another in office or position: See Synonyms at follow.
To accomplish something desired or intended
To pass to a person by way of inheritance.
D. The children climbed higher than the sun's rays that afternoon.
Hope this helps!