B.
1. was invented
2. was divided
3. was caused
4. was killed
5. was lost
6. were you asked
7. was cut off
8. were eaten
9. was informed
10. was distressed
11. was stolen
12. was closed
13. were ignored
14. was reorganized
15. were made
16. were killed
17. were added
18. was bought
19. were exhibited
20. was required