*/*_For constructing a terrazzo floor, Pick up the incorrect statement from the following:?

• A. A base course is prepared as in cement concrete flooring
• B. A 32 mm thick layer of cement concrete (1 : 2 : 4) is laid on the base course and the surface is made smooth by trowelling
• C. Glass strips are driven into the layer according to the pattern required
• D. After final grinding is over, oxalic acid mixed with water is spread over and rubbed hard with soft material