Final answer:
The two basic blow-molding methods are Extrusion blowing and Injection blowing, corresponding to answer C) Injection, Extrusion. The correct option is C) Injection, Extrusion
Step-by-step explanation:
The two basic blow-molding methods are Extrusion blowing and Injection blowing. Therefore, the correct answer to the question is C) Injection, Extrusion. In the blow-molding process, extrusion involves creating a parison or a preform, which is then clamped into a mold. Air is blown into the parison, inflating it into the shape of a hollow bottle, container, or part.
On the other hand, injection blow molding involves injecting the molten material into a mold to form a preform. Then, this preform is transferred to the blow molding section of the machine, where it is inflated into the final shape. The correct option is C) Injection, Extrusion