In the cross-section method of indirect contouring, the spacing of cross-sections depends upon

i)    contour interval
ii)    scale of plan
iii)    characteristics of ground
The    correct answer is
a)    only (i)
b)    (i)and(ii)
c)    (ii) and (iii)
d)    (i), (ii) and (iii)

Ans: d