Why is it important for fuel oil tanks not to be topped off at the inner bottom level when

loading on a cold day？

A.Increased viscosity of the product needs higher loading pressure, which increases the chances of a spill

B.Air pockets may cause the fuel to bubble out of the ullage hole

C.The temperature rise of the fuel will cause an overflow

D.Fueling valve may become stuck closed and cause the fuel oil to spill before the valve can be opened