Which statement BEST describes how the "Duck and Cover" drills are described in the text?

A. The drills were an extreme and completely unnecessary attempt by the government
to make people fear nuclear warfare and get them involved in the war effort.

B. They were not effective in providing any protection against burns and broken
glass.

C. The drills, which may seem extreme to those who know now that no nuclear
attack was carried out, represented an effort to protect citizens during an
uncertain time,

D. They did an excellent job of educating schoolchildren about fallout centers and the
science and politics behind nuclear attacks.