The correct answer is option 'C' - Die casting.

Explanation:
Die casting is a process that produces a casting when pressure forces the molten metal into the mold cavity. This process involves the use of a metal die or mold, which is typically made of steel and consists of two halves, the cover die and the ejector die. The dies are designed to create the desired shape of the casting.

The die casting process can be broken down into the following steps:

1. Preparation: The dies are preheated and coated with a release agent to prevent the molten metal from sticking to the surface.

2. Injection: The molten metal, usually an alloy such as aluminum or zinc, is injected into the die cavity at high pressure. The pressure is maintained until the casting solidifies.

3. Cooling and solidification: The molten metal rapidly cools and solidifies within the die cavity, taking the shape of the mold. Cooling channels within the die help to accelerate the solidification process.

4. Ejection: After the casting has solidified, the dies are opened and the casting is ejected from the cavity. Ejector pins or knock-out rods are used to push the casting out of the die.

Die casting has several advantages over other casting processes:

- High accuracy and dimensional stability: The use of a metal die ensures that the casting maintains tight tolerances and consistent dimensions.

- High production rate: Die casting is a fast process that allows for the production of large quantities of castings in a short period of time.

- Good surface finish: The mold cavity surfaces can be machined to achieve a smooth and precise finish on the casting.

- Thin walls and complex shapes: Die casting can produce castings with thin walls and intricate details, making it suitable for a wide range of applications.

Overall, die casting is a versatile and efficient process for producing high-quality castings with excellent dimensional accuracy and surface finish.