Answers : (d) touch the pan to the burner.
Explanation :
It is given that, Earl is using his hands to hold a metal pan 10 cm above a hot burner.
Conduction is defined as the process of transfer of heat from one body to another when they are in contact with each other. It is also known as charging by contact.
So out of given options, the correct one is (d) "touch the pan to the burner". For conduction, the two bodies must be in direct contact.