September 1962 sovient leader nikita khrushev order what and why ?

Nikita Khrushchev (1894-1971) led the Soviet Union during the height of the Cold War, serving as premier from 1958 to 1964. Though he largely pursued a policy of peaceful coexistence with the West, he instigated the Cuban Missile Crisis by placing nuclear weapons 90 miles from Florida. At home, he initiated a process of “de-Stalinization” that made Soviet society less repressive. Yet Khrushchev could be authoritarian in his own right, crushing a revolt in Hungary and approving the construction of the Berlin Wall. Known for his colorful speeches, he once took off and brandished his shoe at the United Nations.

If your choices are the following:
A. desert sand that slowed wagons to a crawl.
B. harsh winter snows that trapped travelers.
C. heavy rainstorms that washed away roads.
D. high, rugged mountains that were hard to cross.

Then the answer is A. desert sand that slowed wagons to a crawl.