Concept:The description points to a light metal with good electrical conductivity and strong use in aircraft manufacture.
Explanation:Aluminium (
Al) has a low density of about
2.7 g/cm3, which makes it light in weight.
It is an excellent conductor of electricity and is widely used in electrical cables.
When alloyed with other metals, aluminium gives a high strength-to-weight ratio, making it ideal for aircraft frames and parts.
Iron is much heavier and mainly used in construction and steelmaking.
Uranium is very dense, radioactive, and used in nuclear energy, not aircraft.
Silver is a good conductor but is too heavy and expensive for large-scale aircraft construction.
Therefore, aluminium is the best match for all the given properties.
Answer:A. Aluminum