Heat transfer takes place according to which law?

• A. Newton‚Äö√Ñ√∂‚àö√ë‚àö¬•s law of cooling
• B. Second law of thermodynamics
• C. Newton‚Äö√Ñ√∂‚àö√ë‚àö¬•s second law of motion
• D. First law of thermodynamics