What Is the Main Structural Feature That Distinguishes Lipids from Other

What is the main structural feature that distinguishes lipids from other biomolecules?

A) Lipids contain a large number of nonpolar, hydrophobic functional groups.
B) Lipids form coiled structures with extensive amounts of branching.
C) Lipids contain a large number of hydrogen bonding functional groups.
D) Lipids form rigid, linear arrays of polymeric molecules that cannot be easily dissolved.
E) none of the above