Which of these is not a likely reason why the only road on the mapped area runs along the elevated feature ?

Which of these is not a likely reason why the only road on the mapped area runs along the elevated feature ?

A.

it was built to avoid the low, floodable region

B.

the road reduced to a minimum the cost of building ridges and culverts across the streams

C.

the major settlements are on the elevation and the road connects to them

D.

the elevation is relatively a low one and so does not constitute an obstacle to road construction

E.

There is no other place through which the road could pass except on the elevation

Correct answer is E

No explanation has been provided for this answer.