Answer
Answer (B)
Work Step by Step
There is exclusion from water rather than attractive forces between the lipid molecules involved. Hypothetically, if lipid molecules formed bonds with one another, the lipid bilayer would be less fluid and mobile depending on the reaction.
The correct answer is (B). Lipid bilayers form because lipid molecules “like each other” (hydrophobic tails cluster together, hydrophilic heads interact with water).
If assembly were only because other molecules “avoid them,” the bilayer would be unstable and nonfunctional.
