Which of the following statements are
I. Mixture of kidney beans and chick peas can be separated by winnowing.
II. Salt from sea water can be obtained on a large scale by evaporation.
III. An alloy is a homogeneous mixture of a metal with another metal or nonmetals.
IV. Seeds of wheat can be separated from a bundle of wheat stalks by sieving.
AII and III only
BI and IV only
CI, III and IV only
DNone of these
C is right since III is wrong and alloys can only have metals