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a
I-B, II-A, III-C
b
I-C, II-B, III-A
c
I-B, II-C, III-A
d
I-A, II-C, III-B
answer is A.
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Detailed Solution
Fe3O4 . . . Ferrimagnetic . . . Magnetic domains aligned in parallel and anti parallel directions in unequal numberMnO . . . Anti Ferromagnetic . . . Magnetic domains aligned in parallel and anti parallel directions in equal numberCrO2 . . . Ferromagnetic . . . All Magnetic domains are aligned in same direction.