Which of the following diagram is correctly related to extraction of pb from galena?
A. Galena `overset("forth floation") rarr Ore overset("Roasting ") underset("with air")rarr`
Roasted ore `overset("Heating with pbs")rarr Pb`
B. Galena `overset("Magnetic")underset("Seperation") rarr Ore overset("Roasting ") underset("with air")rarr`
Roasted ore `overset("Reduction")underset ("carbon")rarr Pb`
C. Galena `overset("Leaching")underset("by NaCN") rarr Ore overset("Zn") rarr Pb`
D. Galena `overset("Forth floatation") rarr Ore overset("Electrolytic ") underset(" reduction")rarrPb`
