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Subject :NSO    Class : Class 7

Given below are statements about importance of minerals made by four students :

Which of the students have made incorrect statements?
(a) Ali and Swati
(b) Ali and Lily
(c) Ali, Lily and Swati
(d) Mohan and Swati


Is the correct answer really C?I searched them all up and they all are correct.I am really confused. HELP!

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