<span>C investigating underground service on the city’s east side, evaluating downtown streetlights and researching computer systems.
This gerund verb form of "investigating" fits into the sentence the best, continuing after the word "including" that precedes it. The gerund "evaluating" also keeps the verbs in the sentence consistent throughout.</span>
Answer:
Mr. Frank is grateful for all the sacrifices Miep made for his family while they lived in the annex. The first scene ends with Miep giving Mr. Frank his daughter Anne's diary.
The answer for your question is B: Formal