The answer is B. Seamlessly weaving flashbacks into present-day action, the author creates a unique story of the events that occurred during the Holocaust in Nazi Germany.
I think the answer is “has”
1. had, would have went
2. liked, would have invited
3. did not protect, would have extinct
4. will be, did not
5. helped, would be
6. would have traveled, bought
7. should go, does not feel
8. would have traveled, had saved