By increasing the temperature, the specific resistance of a conductor and a semiconductor

increases and decreases, respectively

The correct answer is Option (3) → increases and decreases, respectively

Specific resistance (also called resistivity) is the inherent property of a material that resists current flow.

For conductors: As temperature increases, lattice vibrations increase, which scatter electrons more and thus increase resistivity.

For semiconductors: As temperature increases, more charge carriers (electrons and holes) are generated, which decreases resistivity.

Therefore:

Specific resistance of a conductor increases with temperature.

Specific resistance of a semiconductor decreases with temperature.