Does any heat and light energy come from the person who lit the log?

The assertion that no heat and light energy comes from the person who lit the log is based on how energy transfer works in this context. When a person ignites a log, the primary sources of heat and light energy that are observed emanate from the burning log itself, which releases energy through combustion. The person who lights the fire contributes a small amount of energy in the form of the activation energy necessary to initiate combustion but does not provide significant heat or light energy on their own.

The heat and light observed are largely results of the chemical reactions occurring within the log during combustion. The energy released when the log burns is primarily derived from the chemical energy stored within the wood, which is transformed into thermal (heat) energy and light as a byproduct of the fire.

The incorrect options might imply varying levels of energy contribution from the individual, but in the context of the main heat and light energy produced by the fire, it is accurate to say that the person who lit the log does not directly contribute significant energy in the form of heat or light once the fire is established.