Technician a Says That the Correct Adhesive Bond Repair Material

Technician A says that the correct adhesive bond repair material mixing ratio is pre-determined by the amount that squeezes out of the dual cartridge when dispensing. Technician B says the static mixing tube should be attached to the cartridge prior to removing any of the contents to ensure the proper ratio is dispensed throughout the entire cartridge use. Who is correct?

A) A only
B) B only
C) Both A and B
D) Neither A nor B