Consider a scenario where you have a metal rod and a flame. You hold one end of the metal rod in the flame, and after a while, you notice that the other end of the rod becomes hot as well. This phenomenon is an example of heat transfer, where thermal energy moves from the hot end of the rod to the cooler end. Think about the different ways heat can be transferred and how materials can conduct heat. Which statement best describes the process of heat transfer in this scenario?
A) Heat is transferred from the hot end to the cool end through conduction.
B) Heat is transferred from the cool end to the hot end through conduction.
C) Heat is transferred from the hot end to the cool end through radiation.
D) Heat is transferred from the cool end to the hot end through radiation.