The correct option is
D Draw base
ABTo construct a trapezium, we need to draw base firstSo, first step will be draw base AB i.e. (ii).
Then (iii) i.e Draw an arc of length BC from B and of length AC from A. Then mark the point of intersection as C and join B−C and A−C.
After drawing AB, we can draw a line parallel to AB.
So, next will be (ii) i.e. draw a line from C∥AB
And then draw CD.
Hence, (iv) will be the 1st step.