_Which of the following impurity in cast iron promotes graphite nodule formation and increases the fluidity of the molten metal?$?

_Which of the following impurity in cast iron promotes graphite nodule

1.	_Which of the following impurity in cast iron promotes graphite nodule formation and increases the fluidity of the molten metal?$?
A.	Silicon
B.	Sulphur
C.	Manganese
D.	Phosphorus
Answer» B. Sulphur