Which of the following statements best describes the amphipathic nature of phospholipids and its significance in cell membrane structure?

A. Phospholipids have a polar head and nonpolar tails, allowing them to form micelles in water.

B. The amphipathic nature of phospholipids causes them to aggregate into bilayers, with the polar heads facing the aqueous environment and the nonpolar tails facing each other.

C. Phospholipids are insoluble in water, which prevents them from forming structures in an aqueous environment.

D. The polar heads of phospholipids repel each other, preventing the formation of a stable membrane structure.