Why Are Energy-Rich Lipids from Algae More Useful as a Fuel

Why are energy-rich lipids from algae more useful as a fuel than energy-rich sugars and other carbohydrates produced by photosynthetic organisms such as corn and wheat?

A) The sugars contain less chemical energy than the lipids.
B) The lipids require an additional fermentation step to produce usable chemical energy.
C) The lipids can be used directly as fuel.
D) The sugars contain less chemical energy than the lipids and the lipids can be used directly as fuel.
E) The lipids require an additional fermentation step to produce usable chemical energy and the sugars contain less chemical energy than the lipids.