Forge pig may be converted to wrought iron by A. Rolling B. Pudding C. Shingling D. Refining

The correct answer is: D. Refining

Forge pig is a type of pig iron that is produced in a blast furnace. It is a very impure

The refining process involves heating the forge pig to a high temperature and then hammering it repeatedly. This process removes the impurities from the iron and produces a more ductile and malleable material.

The other options are incorrect because they do not describe a process that can be used to convert forge pig to wrought iron.

• Rolling is a process that is used to shape metal by passing it through a series of rollers. This process can be used to produce a variety of shapes and sizes of metal products, but it does not remove impurities from the metal.
• Pudding is a process that is used to remove impurities from molten metal by stirring it with a paddle. This process is not effective for removing impurities from forge pig, which is a solid material.
• Shingle is a process that is used to cut metal into thin sheets. This process does not remove impurities from the metal.