If space occupied by the refrigerating plant and cost is the major consideration, which of the following refrigerant will be preferred?

If space occupied by the refrigerating plant and cost is the major con

1.	If space occupied by the refrigerating plant and cost is the major consideration, which of the following refrigerant will be preferred?
A.	Carbondioxide
B.	Sulphur dioxide
C.	Mehtyl chloride
D.	Ammonia
E.	Any of the above
Answer» B. Sulphur dioxide