Why is the phrase "duck and cover" repeated many times throughout the
video?
O
A. To show students that it was very simple and easy to be safe
during an atom bomb attack.
O
B. To show students that is was not possible tone safe during an
atom bomb attack.
O
C. To show students that it was very hard and complicated to be safe
during an atom bomb attack.
O
D. To show students that an atom bomb attack was very dangerous.