the color of the object the mass of the object how fast the object sinks in water the material that the object is made of
I am hesitating between 4 options to answer the following question, which option should I choose?
Question: Which property of an object determines how well it conducts electricity?
Possibilities:
- the color of the object
- the mass of the object
- how fast the object sinks in water
- the material that the object is made of

the material that the object is made of