Q: You are presented with the quiz "What can be done to wood and straw to produce electricity? " But you don't know the answer, so you turn to your teacher to ask for hints. He says that "biofuel is used to produce electricity by burning" and "wood and straw are both examples of biofuels". So, what's the best answer to the question?

Select from the following.
I. massive damage
II. It can be crushed
III. adding heat
IV. It can be burned.
V. matter vibrating
VI. It can be boiled
VII. Plant growth is reduced
VIII. it can be chopped
A:
IV.