Which of the Following Correctly Describes Biofuels

Which of the following correctly describes biofuels?

A) Biofuels must be mixed with traditional fossil fuels, and then may be used to power vehicles.
B) It is preferable to create biofuels from crops.
C) Biofuels may be created from for example algae or corn.
D) If consumers were willing, there is sufficient biodiesel to replace conventional fossil fuel.
E) Biodiesel is created from starch through the use of microorganisms.