For efficient performance of a blast furnace, the extent of reduction

1.	For efficient performance of a blast furnace, the extent of reduction of Wustite (FO) should be
A.	100% indirect reduction.
B.	100% direct reduction.
C.	50-60% indirect reduction.
D.	30-40% indirect reduction.
Answer» D. 30-40% indirect reduction.

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For efficient performance of a blast furnace, the extent of reduction of Wustite (FO) should be

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