Pick out the wrong statement?

A. Close circuit grinding is more economical than open circuit grinding
B. Cod oil, beef tallow or aluminium stearates are used as grinding aids in cement ‘industries’
C. The equipment used for the removal of traces of solids from a liquid is called a classifierCorrect Answer
D. Size enlargement is a mechanical operation exemplified by medicinal tablet making
Correct Option: C. The equipment used for the removal of traces of solids from a liquid is called a classifier

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