*$_About __________ ton of coke is required in a cupola to produce one ton of casting.?

*$_About __________ ton of coke is required in a cupola to produce one

1.	*$_About __________ ton of coke is required in a cupola to produce one ton of casting.?
A.	0.03
B.	0.3
C.	0.8
D.	1.5
Answer» C. 0.8