Plastic
Aluminium
Wood
Germanium
Answer is Right!
Answer is Wrong!
The correct answer is (d), Germanium.
A semiconductor is a material that has electrical conductivity between that of a conductor and an insulator. Semiconductors are used to make a wide variety of electronic devices, including transistors, diodes, and integrated circuits.
Plastic is an insulator. It does not conduct electricity.
Aluminium is a conductor. It conducts electricity very well.
Wood is an insulator. It does not conduct electricity.
Germanium is a semiconductor. It has electrical conductivity between that of a conductor and an insulator.