In Paragraph 14, all the following are indicated with the phrase ' dry run' EXCEPT ______.
A.
it showed that experts can get people there and answer some tough questions
B.
it taught us that lots of issues are hard to grapple with because they come so fast
C.
the H5 disease was too catastrophic to be controlled by human beings
D.
it can serve as a wake-up call and none too soon