The alloying element which reduces the formation of iron sulphide in steel is

A. 1539°C
B. 1601°C
C. 1489°C
D. 1712°C
E. 1131°C

A. 87.75% Sn, 4% Cu, 8% Sb, 0.25% Bi
B. 90% Sn, 2% Cu, 4% Sb, 2% Bi, 2% Mg
C. 87% Sn, 4% Cu, 8% Sb, 1% Al
D. 82% Sn, 4% Cu, 8% Sb, 3% Al, 3% Mg
E. none of the above