The correct answer is: B. Superconductor
At low temperatures, lead becomes a superconductor. This means that it loses all electrical resistance and can carry an infinite current without any loss
of energy. This property is used in many applications, such as MRI machines and superconducting magnets.A semiconductor is a material that has electrical conductivity between that of a conductor and an insulator. Semiconductors are used in many electronic devices, such as transistors and solar cells.
An insulator is a material that does not conduct electricity. Insulators are used to protect people from electrical shock and to keep electrical circuits from shorting out.
A conductor is a material that allows electricity to flow through it easily. Conductors are used in many electrical devices, such as wires and cables.