Which of the following fences is used to discourage a casual passerby?

A. Fence 3 to 4 feet high
B. Fence 6 to 7 feet high
C. Fence over 8 feet high
D. PIDAS

Answer: A
Explanation: Fences 3 to 4 feet high are used to discourage the casual passerby; fences 6 to 7 feet high are used to general intruders; and fences over 8 feet and PIDAS are used to keep determined intruders out.

Computer Science & Information Technology

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