On a cold day when the room temperature is 15°C, the metallic cap of a pen becomes much colder than its plastic body, though both are at the same temperature of 15°C, because :

lastics have a higher thermal conductivity than metals

etals have higher thermal capacity than plastics

lastics have a lower density than metals

etals are good conductors of heat

On a cold day when the room temperature is 15°C, the metallic cap of

1.	On a cold day when the room temperature is 15°C, the metallic cap of a pen becomes much colder than its plastic body, though both are at the same temperature of 15°C, because :
A.	etals have higher thermal capacity than plastics
B.	lastics have a lower density than metals
C.	etals are good conductors of heat
D.	lastics have a higher thermal conductivity than metals
Answer» D. lastics have a higher thermal conductivity than metals