Occurrence Of Metals

Cast iron typically melts at around 1200 C. This melting point is lower than pure iron due to the presence of carbon and other alloying elements, which reduce the melting temperature compared to pure iron.
The other options are either too low or too high compared to the typical melting range of cast iron.

Wrought iron contains about 2-4% carbon. This low carbon content makes it malleable and ductile, suitable for forging and other mechanical applications. Higher carbon content would make it harder but more brittle, as seen in cast iron or steel.