Jai is having in his home four pet dogs named Saty, Jany, Rex, and Leo. The colors of the dogs are Brown, White, Grey and Black (not necessarily in the same order). The four dogs belong to different breeds- Labrador, Alsatian, Pug and Bull dog. I. Rex is a White colored dog but not Alsatian. II. The dog which is Black in color is a Pug. III. Saty is not a Grey color dog. Grey color dog does not belong to Labrador breed. Which dog belongs to Labrador breed? (a)Saty (b) Leo (c)Jany (d)Cannot be determined