What energy transformation occur when wood is burned

C. Chemical energy transforms into thermal energy and light energy.

The reason why this is the answer is because thermal energy and heat energy are basically the same things, so D is wrong. Another reason why is because the wood wasn't on fire to begin with so it cant be A. The final reason is that wood cannot create electricity. 

True, the standard unit for volume is liters which can be represented by either a lower case "l" or a capital "l"

Iwould you figure it out but you don't have a picture or in your question as to what the physical property you're looking for is