Different substances are classified as:I Pure substanceII Homogeneous mixtureIII Heterogeneous mixtureA few common substances are listed below.(i) Air,(ii) Graphite,(iii) Gasoline,(iv) Diamond,(v) Tap water,(vi) Iron,(vii) Sodium chloride,(viii) Iodised salt,(ix) Brass,(x) Oil and waterWhich of the following represents the correct classification of the given substances?

• A. I - (ii), (vi), (ix);II - (i), (v), (vii);III - (iii), (iv), (viii), (x)
• B. I - (ii), (iv), (vi), (vii);II - (i), (iii), (v), (viii), (ix);III -(x)
• C. I - (i), (iv), (vii), (ix);II - (ii), (v). (viii);III - (iii), (vi), (x)
• D. None of these represents the correct match.