What is the difference between a conductor and an insulator?

Question 2 options:

A conductor can get heat transfer through convection and conduction and an insulator can only get heat transfer from radiation

A conductor lets heat pass through it easily, and an insulator does not allow heat to pass through it easily

A conductor can only get heat transfer through conduction, and an insulator can only get heat transfer through radiation

A conductor is unaffected by heat, and an insulator is extremely affected by heat