Answer:
its b i just did it and got it right i promise !
Explanation:
Mass failures in public examinations: a natural disaster (Im not sure if this is the answer you were looking for but hopefully it helps :) )
Answer:
I would say B but im not 100% sure, C sounds resonable as well. I know its not A or D. Letter B might be your best bet.
Explanation:
hope this helped you :3