The difference between pour point and cloud point lies in .

A、 Pour point is of low-temperature property while cloud point is of high-temperature Property.
B、 Pour point is measure by the Conradson method while cloud point is obtained form a bomb calorimeter test.
C、 Fuel fails to flow at pour point while at cloud point, fuel can possibly flow only with waxes forming in it.
D、 Fuel is able to flow at pour point while it is unable to do it at cloud point.