In low carbon steels, __________ raises the yield point and improves the resistance to atmospheric corrosion.

In low carbon steels, __________ raises the yield point and improves t

1.	In low carbon steels, __________ raises the yield point and improves the resistance to atmospheric corrosion.
A.	sulphur
B.	phosphorus
C.	manganese
D.	silicon
Answer» C. manganese