In connection with petroleum refining, identify the incorrect statement among the following options

Q. In connection with petroleum refining, identify the incorrect statement among the following options.
A. Desalting of crude oil is done before processing it in atmospheric distillation unit
B. A stream of hydrogen is produced in catalytic reforming of naphtha
C. Asphalt used for paving is a petroleum product
D. Cetane number indicates the quality of petrol / motor spirit
Ans: Cetane number indicates the quality of petrol / motor spirit