Marquel P

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A border wall supports impedance and denial of persons intending to make an illegal entry into the United States. A major factor in determining where investments in impedance and denial would be most effective is referred to as $$vanishing time,$$ which is the distance between the border and the point at which an illegal border crosser could blend into the local populace. Vanishing times are often particularly short in urban areas.

From the information given above, it can be validly concluded that, when considering border wall investments,

A$)$ if a factor is the distance between the border and the point at which an illegal border crosser could blend into the local populace, then it does not represent the vanishing time

B$)$ if a factor can determine the effectiveness of impedance and denial investments, it can only be the vanishing time

C$)$ if a factor cannot determine the effectiveness of impedance and denial investments, then it must be the vanishing time

D$)$ if a factor determines the effectiveness of impedance and denial investments, then it is not the vanishing time

E$)$ if a factor is the vanishing time, then it is the distance between the border and the point at which an illegal border crosser could blend into the local populace