Correct option is D
Ductility refers to the ability of a material to undergo significant plastic deformation before rupture or fracture, usually by being stretched into a wire. Among the given options:
- Iron has good ductility, but not as high as Aluminium.
- Tungsten is known for its high tensile strength but not for ductility.
- Nickel also has good ductility, particularly when alloyed, but it is still less ductile compared to Aluminium.
- Aluminium has the highest ductility among the materials listed. This property makes it particularly useful in applications where the material needs to be shaped or drawn into wires or sheets.
Therefore, Aluminium (option d) has the maximum ductility.