radiation conduction convection insulation
I am hesitating between 4 options to answer the following question, which option should I choose?
Question: A dark colored wall becomes warm when the Sun is shining on it. After the Sun sets, a person standing a meter away can feel warmth from the wall. How does heat transfer from the wall to the person?
Possibilities:
- radiation
- conduction
- convection
- insulation

radiation