variation of magnetic susceptibility with magnetizing field

[Geocentric]

1)The variation of magnetic susceptibility(chi) with the magnetizing field for a paramagnetic material is given by which graph?
For a paramagnetic material, the magnetic susceptibility(chi) is a constant and a small positive quantity. So the answer should be (d). But the answer given in my book is (a). Please guide me.

[ronthepon]

What difference does it make? There is no scale whatsoever, I mean how can we tell?

In any case, it is a small positive quantity for paramagnetic materials.

It is (d), because it's reality and not the book which is going to get you score.

[Geocentric]

Thanks.