(A): In the smelting of copper pyrites in blast furnace, `Cu_2 S` formed but not FeS.
(R) : Cu has greater affinity to 'S' than to 'O' where as Fe has greater affinity to 'O' than to 'S'.

Options

A. Both (A) and (R) are true and (R) is the correct explanation of (A)
B. Both (A) and (R) are true and (R) is not the correct explanation of (A)
C. (A) is true but (R) is false
D. Both (A) and (R) are false

Answer

A