(A) 0.3 μg of β-Carotene
(B) 0.3 μg of retinol
(C) 0.6 μg of retinoic acid
(D) All of these
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(A) 0.3 μg of β-Carotene
(B) 0.3 μg of retinol
(C) 0.6 μg of retinoic acid
(D) All of these