Define 'ductility' and provide an example of a material with high ductility.

• A. Ductility is the ability to deform plastically before fracture; example: mild steel.
• B. Ductility is the ability to resist corrosion; example: aluminum.
• C. Ductility is hardness; example: diamond.
• D. Ductility is elasticity; example: rubber.

Answer: (A)