What is the correct method for distributing the toner inside the print cartridge?

A.
Hold the cartridge by the ends and gently rock the cartridge end-to-end six times.

B.
Hold the cartridge by the long sides and gently rock the cartridge side to side six times.

C.
Hold the end of the cartridge with one hand, and firmly tap the opposite end on the top of a table.

D.
Hold the side of the cartridge with one hand, and gently tap one end on the top of a table six times.